| Subject | Spanish | English |
| chem. | agitar con movimientos circulares | swirl |
| mun.plan. | aire circulado | circulated air |
| tech. | alambre circular | round wire |
| el. | alimentación con polarización circular | circularly polarized feed |
| el. | alimentación con polarización circular | circularly polarised feed |
| mech.eng. | alimentador circular | rotary disc feeder |
| math. | amplitud circular | circular range |
| commun., IT | antena circular | circular antenna |
| el. | antena con polarización circular levógira | left-hand circular polarised aerial |
| el. | antena con polarización circular sinistrorsum | left-hand circular polarized antenna |
| el. | antena con polarización circular sinistrorsum | left-hand circular polarised antenna |
| el. | antena con polarización circular sinistrorsum | left-hand circular polarised aerial |
| el. | antena de polarización circular | circularly polarised aerial |
| scient. | arco de círculo | arc of circle |
| IT | arrastre circular | end-around carry |
| agric., industr., construct. | aserrada con circular | circular-sawn |
| agric., mech.eng. | aspersor circular | full-circle sprinkler |
| agric., mech.eng. | aspersor de difusión circular | circular area sprinkler |
| transp., construct. | ataguía con paredes circulares | cellular cofferdam |
| construct. | ataguía de células circulares | circular cellular coffer dam |
| met. | autorizado a circular | put into circulation |
| commun. | baliza de polarización circular | circularly polarized beacon |
| commun. | baliza de polarización circular | circularly polarised beacon |
| industr., construct., chem. | barrido circular | circular scanning |
| transp. | billete circular | round-trip ticket |
| transp. | billete circular | circular-tour ticket |
| econ. | billetes de banco nacionales que circulan en el extranjero | national bank notes circulating abroad |
| met. | boquilla de corte con orificios circulares de calefacción | two piece nozzle with multiple circular heating orifices |
| agric. | brazo de cuchilla circular oscilante | cranked coulter arm |
| life.sc. | brújula de prisma circular | prismatic circular compass |
| life.sc. | brújula de reflexión circular | striding compass |
| life.sc. | brújula de reflexión circular | prismatic circular compass |
| transp., construct. | bóveda circular | circular arch |
| mech.eng. | cable de cordones de sección circular | round strand construction haulage rope |
| med. | campo circular | circular field |
| mech.eng. | canalización circular de salida del óxido de deuterio | deuterium oxide outlet ring main |
| mech.eng. | canalización circular de salida del óxido de deuterio | D2O outlet ring main |
| mech.eng. | canalización circular del moderador del óxido de deuterio | critical toughness level |
| el. | característica circular de impedancia | circular impedance characteristic |
| commun. | carta circular | mailing piece |
| commun. | carta circular | circular letter |
| commun. | carta circular | circular |
| agric. | casillas rotativas tándem formando círculo | rototandem |
| mech.eng., construct. | celda circular | circular cell |
| IT, dat.proc. | celda circular resuelta | resolved circular cell |
| industr., construct. | cepillo circular | circular brush |
| gen. | circulan por la izquierda | they drive on the left |
| gen. | circulan rumores de que... | rumor has it that... |
| gen. | circulan rumores de que... | rumors are circulating that... |
| transp. | circular a contravía | to run on the wrong line |
| gen. | circular a estados | circular state letter |
| gen. | circular administrativa | administrative circular |
| gen. | circular administrativa | Administrative Circular |
| industr., construct., mech.eng. | circular con diente limpiador | planer saw |
| industr., construct., mech.eng. | circular con diente limpiador | novelty saw |
| nat.res. | circular negra | Florida red scale (Chrysomphalus aonidum, Chrysomphalus ficus) |
| transp. | circular por vía contraria | to run on the wrong track |
| transp. | circular por vía contraria | to run on the wrong line |
| fin. | circular presupuestaria | budgetary circular |
| transp. | circular sobre sus propias ruedas | to run on its own wheels |
| industr., construct., mech.eng. | cizalla circular | rotary cutter |
| agric. | cochinilla circular negra | Florida red scale (Chrysomphalus) |
| math. | coeficiente de correlación serial circular | circular serial correlation coefficient |
| transp., mil., grnd.forc. | Comité de la distribución de permisos para los vehículos de transporte pesado de mercancías que circulen por Suiza | Committee on the distribution of permits for heavy goods vehicles travelling in Switzerland |
| transp., mil., grnd.forc. | Comité de la distribución de permisos para los vehículos de transporte pesado de mercancías que circulen por Suiza | Committee for the implementation of the rules for the distribution and management of the permits allocated to the Community for heavy goods vehicles travelling in Switzerland |
| el. | conector circular | circular connector |
| agric. | conjunto de cuchilla circular y raedera | combination rolling coulter and jointer |
| IT | coordenadas cilíndricas circulares | circular cylindrical coordinates |
| transp., mil., grnd.forc. | corona circular | swept circle |
| tech. | corriente que circula entre dos generadores compuestos conectados en paralelo y que iguala el rendimiento de salida | equalizing current |
| construct. | cortador de vidrio circular | compass-type glass cutter |
| met. | corte circular | circle cut |
| fin., transp. | crucero circular | round trip by sea |
| gen. | cuadratura del círculo | squaring the circle (quadratura circus) |
| transp., avia. | cuadro circular | bottom structure |
| mech.eng. | cuchilla circular | circular cutter |
| chem. | cuchilla circular | circular blade |
| chem. | cuchilla circular | rotor knife |
| agric. | cuchilla circular | disc coulter |
| agric. | cuchilla circular con bordes ondulados | wavy edge-disc coulter |
| agric. | cuchilla circular con raedera | combination rolling coulter and jointer |
| agric. | cuchilla circular cóncava | concave disk colter |
| agric. | cuchilla circular escotada | scalloped-edged coulter |
| agric. | cuchilla circular escotada | notched coulter |
| agric. | cuchilla circular escotada | cut-away coulter |
| agric. | cuchilla circular lisa | plain disc |
| agric. | cuchilla circular lisa | plain coulter |
| agric. | cuchilla circular ondulada | wavy edge-disc coulter |
| agric. | cuchilla circular oscilante | tilting disc coulter |
| agric. | cuchilla circular oscilante | swivel disc coulter |
| agric. | cuchilla circular rígida | non tilting coulter |
| industr., construct., mech.eng. | cuchilla de cizalla circular | rotary cutting blade |
| industr., construct., mech.eng. | cuchilla de cizalla circular | rotary cutter |
| transp. | curva circular | curve of constant radius |
| mech.eng., construct. | célula circular | circular cell |
| polit. | cìrculo de calidad | quality circle |
| industr., construct. | círculo acimutal | azimuth circle |
| industr., construct. | círculo acimutal | altazimuth |
| life.sc., tech. | círculo azimutal | graduated circle |
| life.sc., tech. | círculo azimutal | protractor |
| life.sc., tech. | círculo azimutal | azimuth circle |
| lab.law. | círculo de calidad | quality improvement group |
| econ. | círculo de calidad | quality control circle |
| el. | círculo de clavijas | pin circle |
| earth.sc., mech.eng. | círculo de contacto | sealing circle |
| industr., construct., mech.eng. | círculo de corte | cutting circle |
| scient. | círculo de cálculo | disc calculator |
| gen. | círculo de debate | discussion circle |
| life.sc. | círculo de declinación | declination circle |
| construct. | círculo de deslizamiento | slip circle |
| construct. | círculo de deslizamiento | Swedish break |
| gen. | círculo de dispersión | circular dispersion |
| law | Círculo de Empresarios | Circle of Employers |
| el. | círculo de error de alineación | boresight error circle |
| life.sc. | círculo de estación | station circle |
| gen. | círculo de estudio | study circle |
| econ. | Círculo de Estudios de Ayuda al Desarrollo | Association for Development Studies |
| med. | círculo de Huguier | Huguier circle |
| commun., transp. | círculo de indeterminación | circle of uncertainty |
| life.sc. | círculo de inercia | inertial circle |
| life.sc. | círculo de inercia | circle of inertia |
| life.sc., construct. | círculo de influencia | circle of influence |
| life.sc., construct. | círculo de influencia de equilibrio | equilibrium circle of influence |
| life.sc. | círculo de latitud | parallel of latitude |
| commun. | círculo de lectores | book club |
| gen. | círculo de Lufbery | Lufbery circle |
| agric. | círculo de marcar | bearing circle |
| mech.eng. | círculo de pie | root circle |
| mech.eng. | círculo de pie | dedendum circle |
| agric. | círculo de plantas huéspedes | range of host plants |
| med. | círculo funcional | functional circle Uexküll |
| med. | círculo funcional de Uexküll | functional circle |
| med. | círculo funcional de Uexküll | functional circle Uexküll |
| life.sc. | círculo geodésico | circle of geodetic equidistance |
| earth.sc., mech.eng. | círculo giratorio | pitch circle |
| transp., mater.sc. | círculo graduado | graduated quadrant pitch circle |
| life.sc., transp. | círculo hidrográfico | bearing circle |
| life.sc. | círculo horario | hour circle |
| life.sc. | círculo horario | declination circle |
| life.sc. | círculo meridiano | meridian circle |
| life.sc. | círculo máximo | great circle |
| comp., MS | círculo OneCare | OneCare circle (The computers that share a OneCare subscription) |
| life.sc. | círculo paraselénico | paraselenic circle |
| life.sc. | círculo parhélico | parhelic circle |
| life.sc. | círculo parhélico | mock-sun ring |
| IT, dat.proc. | círculo perfecto | perfect circle |
| med. | círculo periquerático | perikeratitic circle |
| med. | círculo periquerático | pericorneal circle |
| earth.sc. | círculo polar | polar circle |
| earth.sc. | círculo polar antártico | Antarctic Circle |
| earth.sc. | círculo polar ártico | Arctic Circle |
| agric. | círculo socioeconómico | socio-economic group |
| gen. | círculo vicioso | chicken-and-egg situation |
| fin., social.sc., health. | círculo vicioso de enfermedad y pobreza | vicious circle between diseases and poverty |
| gen. | círculo virtuoso | virtuous circle (circulus virtuosus) |
| fin. | círculo virtuoso de crecimiento | virtuous growth circle |
| scient. | deformación circular | out-of-roundness |
| IT, dat.proc. | dependencia circular | circular dependency |
| environ. | desarenador circular | Pista grit trap |
| met., el. | desplazamiento circular del electrodo | electrode travel in an arc of a circle |
| math. | desviación cuartil circular | circular quartile deviation |
| math. | desviación media circular | circular mean deviation |
| IT, transp. | detector de círculo pleno | full-circle detector |
| stat. | diagrama circular | pie chart |
| met., el. | diagrama circular | circular curve |
| stat. | diagrama circular | circular diagram |
| mech.eng., el. | diagrama de círculo | circle diagram |
| math. | diferencia promedio circular | circular mean difference |
| el. | dirección del horizonte del círculo máximo | great circle horizon direction |
| agric., mech.eng. | disco circular liso | flat disc |
| math. | distribución circular | circular distribution |
| math. | distribución circular del enrejado | circular lattice distribution |
| math. | distribución circular simétrica | symmetric circular distribution |
| stat., scient. | distribución sobre una malla circular | circular lattice distribution |
| chem., el. | distribuidor circular | circular slide valve |
| el. | diámetro del círculo | pitch diameter |
| met., el. | diámetro del círculo de electrodos | electrode pitch circle |
| met., el. | diámetro del círculo de electrodos | electrode circle |
| met., el. | diámetro del círculo de electrodos | diameter of the electrode circle |
| el. | diámetro del círculo de electrodos de horno de arco trifásico | arc furnace electrode pitch circle diameter |
| el. | diámetro del círculo de electrodos de horno de arco trifásico | arc furnace electrode PCD |
| transp., tech. | diámetro del círculo de rodadura | rim diameter |
| transp., mech.eng. | diámetro del círculo primitivo | pitch diameter |
| transp., mech.eng. | diámetro del círculo primitivo | diameter of pitch circle |
| construct. | edificio circular | circular building |
| transp. | el tren circula a su hora | the train is on time |
| agric. | empacadora circular | round baler |
| commun. | encaminamiento circular | circular routing |
| earth.sc. | escala circular | dial scale |
| earth.sc. | escala circular | dial |
| earth.sc. | escala circular | circular scale |
| nat.sc., agric. | escama rojo circular | dictyospermum scale (Chrysomphalus dictyospermi, Chrysomphalus diversicolor, Chrysomphalus pinnulifer, Chrysomphalus pinnulifera) |
| coal. | escudo de doble arco circular | twin caliper support |
| mech.eng. | espesor circular del diente | tooth thickness |
| mech.eng. | espesor circular del diente | transverse tooth thickness |
| mech.eng. | espesor circular del diente | circular thickness |
| agric. | estabulación circular | roundhouse |
| agric. | estabulación circular | circular stall system |
| math. | estadìstica no circular | non-circular statistic |
| stat., scient. | estadístico no circular | non-circular statistic |
| stat., agric. | estimación por parcelas de prueba circulares | estimation by circular sample plots |
| stat., agric. | estimación por parcelas de prueba circulares | circular plot sampling |
| fish.farm., met. | estrobo circular | round strap |
| transp. | estructura circular | circumferential frame |
| gen. | Está circulando la noticia de tu renuncia | The news of your resignation is circulating |
| mater.sc. | etiqueta envolvente circular | wrap-around label |
| mech.eng. | evolvente de círculo | involute to a circle |
| life.sc. | excentricidad del círculo graduado | eccentricity of graduated circle |
| earth.sc., tech. | exploración circular alrededor del defecto | swivel scan |
| transp. | falda circular | circular skirt |
| transp., tech., law | fisura circular | circular crack |
| el. | ...fuera del arco de círculo máximo | of the great circle path |
| scient., life.sc. | funciones circulares | circular functions |
| scient., life.sc. | funciones circulares | trigonometric functions |
| transp. | fuselaje circular | circumferential frame |
| math. | fórmula circular | circular formula |
| agric. | gallinero circular japonés | japanese circular poultry house |
| math. | gráfica circular | pie chart |
| math. | gráfica circular | circle graph |
| comp., MS | gráfico circular | pie chart (A round chart that shows the size of items in a single data series, proportional to the sum of the items) |
| math. | gráfico circular | circular chart |
| comp., MS | gráfico circular con subgráfico circular | pie of pie chart (A pie chart with user-defined values extracted and combined into a second pie) |
| mech.eng. | grúa de vía circular | polar crane |
| mech.eng. | grúa de vía circular | circular track crane |
| mech.eng. | grúa sobre ruedas que pueda circular sobre carriles | crane with wheels able to run on rails |
| el. | guiaonda circular | circular waveguide |
| mech.eng. | guía circular | round guide |
| mech.eng. | guía circular | circular guide |
| industr., construct., mech.eng. | hendedora circular | rotary creaser |
| mech.eng. | herramienta circular | pinion type cutter |
| earth.sc., tech. | higrómetro de forma circular | circular hygrometer |
| med. | himen circular | annular hymen |
| mech.eng. | hoja circular | blade of a circular saw |
| earth.sc., mech.eng. | interferencia circular | circular interference |
| IT | interpolación circular | circular interpolation |
| mater.sc., met. | junta circular | circular bead |
| transp., mater.sc. | junta circular de funda | cover "o" ring |
| transp., mater.sc. | junta circular de visor | sight seal |
| mech.eng. | junta tórica de sección circular | o-ring joint |
| mech.eng. | ladrillo circular | circular brick |
| industr., construct. | lanzadera circular | circular moving shuttle |
| life.sc. | lectura de doble círculo | double-circle reading |
| IT | lista circular | ring list |
| IT | lista circular | circular list |
| gen. | los coches circulaban a gran velocidad | the cars were being driven very fast |
| industr., construct., mech.eng. | lámina de sierra circular | plate saw |
| industr., construct., mech.eng. | lámina de sierra circular cóncava | concave saw |
| transp. | línea circular | circle service |
| el. | línea de varilla circular | rod line |
| mater.sc. | manguera de tejido circular | round weave casing |
| industr., construct. | manuar a peines circulares | porcupine drawing frame |
| transp. | marca circular | circle marker |
| comp., MS | menú circular | radial menu (A touch-friendly, contextual control that presents commands in a circular arrangement) |
| mech.eng. | mesa circular | round table |
| mech.eng. | mesa circular | circular table |
| immigr., empl. | migración circular | circular migration |
| tech., el. | milipulgada circular | circular mil |
| earth.sc. | movimiento circular | rotary motion |
| tech., industr., construct. | máquina circular de gran diámetro | circular machine with large diameter |
| tech., industr., construct. | máquina circular de gran diámetro de fontura doble | double cylinder circular machine with large diameter |
| tech., industr., construct. | máquina circular de gran diámetro de fontura doble | double needle bed circular machine with large diameter |
| industr., construct. | máquina circular de remallado | circular looper |
| industr., construct. | máquina circular de remallar | circular looping machine |
| industr., construct. | máquina circular de remallar | circular looper |
| industr., construct. | máquina circular Links | circular purl knitting machine |
| met. | máquina de soldar por costura circular | circumferential seam welder |
| IT, nat.sc. | máscara perforada con orificios circulares | dot mask |
| IT | máscara perforada de orificios circulares | dot mask |
| agric. | navegación por círculo máximo | great circle navigation |
| IT, transp. | nivel circular | circular level |
| nat.sc. | nivel de mira circular | circular rod level |
| commun., el. | onda de polarización circular sinistrorsum | anti-clockwise polarized wave |
| gen. | onda eléctrica circular | circular electric wave |
| gen. | onda magnética circular | circular magnetic wave |
| IT, nat.sc. | orificio circular | dot mask |
| agric. | paca circular | rolled bale |
| hobby, transp., avia. | paracaídas de campana plana circular | circular flat parachute |
| nucl.pow. | pasarela de servicio circular | circular catwalk |
| gen. | peatón, circule por la izquierda | pedestrians, keep left (en letrero) |
| industr., construct. | peinadora circular | circular combing machine |
| industr., construct. | peinadora circular | circular comb |
| industr., construct. | peinadora circular | Noble comb |
| industr., construct. | peine circular | porcupine |
| industr., construct. | peine circular | rotary comb |
| industr., construct. | peine circular | comb cylinder |
| el. | perfil efectivo del trayecto de círculo máximo | effective great circle path profile |
| med. | perforador circular | wheel drill |
| med. | peristaltismo circular | diastalsis |
| fish.farm. | pesado de seccion circular | round fish |
| agric. | pesebre circular | circular feeder |
| mun.plan. | picador de hoja circular | lightning mincer with cutting wheel |
| agric. | placa circular | tree-grid |
| commun. | plano del círculo máximo | plane of the great circle |
| agric. | plaquita circular | spray disc |
| agric. | plaquita circular | nozzle disc |
| el. | plasma circular | circular plasma |
| mech.eng. | plato circular | work holding plate |
| el. | polarización circular | circular polarization |
| el. | polarización circular | circular polarisation |
| el. | polarización circular dextrorsum | clockwise polarisation |
| el. | polarización circular dextrógira | right-hand polarisation |
| el. | polarización circular dextrógira | right-hand polarization |
| el. | polarización circular dextrógira | right-hand circular polarisation |
| el. | polarización circular dextrógira | right-hand circular polarization |
| el. | polarización circular dextrógira | clockwise polarization |
| el. | polarización circular dextrógira | clockwise polarisation |
| el. | polarización circular levogira | left circular polarisation |
| el. | polarización circular levógira | left-hand circular polarisation |
| el. | polarización circular sinistrorsum | left-hand circular polarization |
| el. | polarización circular sinistrorsum | left circular polarization |
| el. | polarización circular sinistrorsum | left-hand circular polarisation |
| el. | polarización circular sinistrorsum | left circular polarisation |
| gen. | primera circular | initial announcement |
| gen. | primera circular | preliminary announcement |
| gen. | primera circular | first circular |
| mater.sc., construct. | profundidad del círculo de arena | texture depth by sand patch test |
| commun., transp. | prohibición de circular | running prohibition |
| math. | prueba circular | circular test |
| transp., mater.sc. | radio del círculo primitivo | pitch radius |
| agric., construct. | radio del círculo regado | range of jet |
| transp. | radiofaro circular | circular radio beacon |
| agric. | rastrillo circular | circular feeder |
| transp. | recorrido circular | circular tour |
| comp., MS | referencia circular | circular reference (A situation in which one object refers back to itself, either directly or indirectly) |
| IT, dat.proc. | referencia circular indirecta | indirect circular reference |
| transp. | refuerzo circular | all directional patch |
| commun., el. | RF de polarización circular | circular polarized RF |
| commun., el. | RF de polarización circular | circular polarised RF |
| mech.eng. | segmento circular | Woodruff key |
| mech.eng. | segmento circular | Whitney key |
| wood. | serrería con dos circulares | top-saw mill |
| wood. | serrería con dos circulares | double circular sawmill |
| wood. | serrería con dos circulares | double circular mill |
| wood. | serrería con dos circulares | bush mill |
| el. | señal propagada fuera del círculo máximo | non-great circle path signal |
| industr., construct., met. | sierra circular | slitting wheel |
| forestr. | sierra circular | circular saw |
| industr., construct., met. | sierra circular | slitting disc |
| agric. | sierra circular | rotary saw |
| industr., construct., mech.eng. | sierra circular con mesa basculante | circular saw with swinging table |
| mech.eng. | sierra circular con mesa de rodillos | saw bench with roll-table |
| mech.eng. | sierra circular con mesa de rodillos | circular saw with sliding table |
| industr., construct., mech.eng. | sierra circular de doble uso | variety saw |
| med. | sierra circular de Doyen | Doyen circular saw |
| tech. | sierra circular de mesa | circular saw bench |
| industr. | sierra circular de una hoja | single-blade circular saw |
| industr. | sierra circular de varias hojas | multi-blade circular saw |
| industr., construct., mech.eng. | sierra circular múltiple | circular gang-saw |
| industr., construct., mech.eng. | sierra circular múltiple | gang-circular |
| industr., construct., mech.eng. | sierra circular múltiple | circular gang-mill |
| agric. | sierra descortezadora circular | debarking circular saw |
| el. | sistema de polarización circular | circularly polarized system |
| el. | sistema de polarización circular | circularly polarised system |
| law, fin. | sistema del círculo | ring system |
| agric. | surco circular | hoeing round about the plants |
| life.sc. | taquímetro de diagrama circular | diagram tacheometer |
| industr., construct. | telar circular | circular loom |
| earth.sc., construct. | tensión circular | hoop stress |
| earth.sc., construct. | tensión circular | circumferential stress |
| stat., scient. | terna circular | circular triad |
| math. | terna circular | circular triads |
| econ. | territorio geográfico dentro del cual los bienes circulan libremente | geographic territory within which goods move freely |
| agric. | tolva circular | circular hopper |
| transp., tech. | tope de sección circular | circular section buffer |
| el. | transmisión con polarización circular | circularly polarized transmission |
| el. | transmisión con polarización circular | circularly polarised transmission |
| industr., construct. | tricotosa circular de doble cilindro | double cylinder knitting machine |
| industr., construct. | tricotosa circular interlock | interlock circular knitting machine |
| agric., mech.eng. | tronzadora circular múltiple | slasher |
| math. | trìade circular | circular triads |
| industr. | tubo de sección circular | tube of circular cross-section |
| transp., mech.eng. | unión circular | Cylindrical union |
| transp., mech.eng. | unión circular | Circular union |
| econ. | valores financieros destinados a circular | financial claims intended to circulate |
| el. | vector que gira con movimiento circular | vector rotating in a circular motion |
| life.sc., transp. | velocidad circular | circular velocity |
| crim.law., law | verticilo circular | circular whorl |
| transp. | viaje circular | circular tour |
| transp., avia. | viaje circular | circle trip |
| transp. | viaje circular | circular journey |
| gen. | viga circular del recorrido del carro | circular crab runway girder |
| earth.sc., mech.eng. | voluta de secciones circulares | volute casing with circular cross-sections |
| earth.sc., mech.eng. | álabe circular | circular vane |
| earth.sc., mech.eng. | álabe circular | circular blade |
| industr., construct., mech.eng. | árbol de sierra circular | saw mandril |
| industr., construct., mech.eng. | árbol de sierra circular | saw shaft |
| industr., construct., mech.eng. | árbol de sierra circular | saw spindle |
| industr., construct., mech.eng. | árbol de sierra circular | saw mandrel |
| industr., construct., mech.eng. | árbol de sierra circular | saw arbor |
| life.sc. | órbita circular | circular orbit |
| commun. | órbita circular inclinada | inclined circular orbit |
| commun. | órbita circular intermedia | Intermediate Circular Orbit |
| commun. | órbita circular intermedia | intermediate circular orbit |