| Subject | Spanish | English |
| nat.sc., industr., construct. | acebolladura en concha | shell shake |
| med. | anchura de la concha propia | width of concha propria |
| transp. | cabina de concha | clamshell |
| agric. | cajón de conchas de ostras | oystershell box |
| med. | cavidad de la concha | cavity of concha (cavum conchae) |
| antenn. | circuito en concha | shell circuit |
| nat.sc., industr., construct. | colaina en concha | shell shake |
| chem. | concha cilíndrica | barrel shell |
| chem. | concha con curvatura simple | single curved shell |
| chem. | concha con curvaturas opuestas | anticlastic shell |
| chem. | concha con curvaturas orientadas en el mismo sentido | synclastic shell |
| chem. | concha con doble curvatura | double curved shell |
| transp. | concha de almeja | clamshell |
| med. | concha de Bertin | Wistar's pyramid |
| med. | concha de Bertin | sphenoturbinal cornu |
| med. | concha de Bertin | sphenoturbinal bone |
| med. | concha de Bertin | Bertin's bone |
| mech.eng., el. | concha de cojinete | liner backing |
| mech.eng., el. | concha de cojinete | bearing support |
| mech.eng., el. | concha de cojinete | bearing shell |
| mech.eng., el. | concha de cojinete | supporting back |
| mech.eng., el. | concha de cojinete | supporting shell |
| mech.eng., el. | concha de cojinete | shell |
| mech.eng., el. | concha de cojinete | backing |
| hydrol. | concha de erosión | shell-shaped scarp |
| earth.sc. | concha de erósion | shell-shaped erosion scarp |
| agric., fish.farm. | concha de ostra | oyster shell |
| fish.farm. | concha de peregrino | great scallop (Pecten jacobaeus) |
| life.sc., fish.farm. | concha de Santiago | great Atlantic scallop (Pecten maximus) |
| IT | concha de sistema experto | skeletal knowledge engineering language |
| IT | concha de sistema experto | skeletal system |
| IT | concha de sistema experto | expert system shell |
| chem. | concha de tonel | barrel shell |
| transp. | concha de tortuga | turtleback |
| agric. | concha de tortuga caparazón y placas separadas | tortoise-shell shell and scales |
| med. | concha esfenoidal de Bertin | concha sphenoidalis |
| nat.res., fish.farm. | concha fina | hard clam (Callista chione) |
| life.sc., fish.farm. | concha fina | smooth callista (Callista chione) |
| mech.eng., el. | concha flotante Lanchester | Lanchester clam |
| ichtyol. | concha hojarasca chata Isognomon alatus | flat tree oyster |
| med. | concha nasal | concha nasalis |
| med. | concha nasal | turbinate bone |
| med. | concha nasal | turbinate body |
| med. | concha nasalis suprema | concha santorinii |
| med. | concha nasalis suprema | concha nasalis suprema |
| industr., construct., met. | concha para anteojería | coquille |
| life.sc., environ. | concha reina del Caribe | queen conch (Strombus gigas) |
| gen. | conchas de ostras | oyster shells |
| fishery | conchas de ostras molidas | schilfers |
| agric. | conchas trituradas | crushed oyster shells |
| transp. | fabricación en concha | shell construction |
| industr., construct., met. | media concha | micoquille |
| patents. | muebles, espejos, marcos, productos no comprendidos en otras clases de madera, corcho, caña, junco, mimbre, cuerno, hueso, marfil, ballena, concha, ámbar, nácar, espuma de mar, sucedáneos de todas estas materias o | furniture, mirrors, picture frames, goods not included in other classes of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials or of plastics |
| patents. | peces y conchas de terracota | terracotta fish and shells |
| patents. | productos, comprendidos en la clase 20, de madera, corcho, caña, junco, mimbre, cuerno, hueso, marfil, ballena, concha, ámbar, nácar, espuma de mar, sucedáneos de todas estas materias o materias plásticas | goods, so far as included in class 20, of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics |
| patents. | productos comprendidos en la clase 20 de madera, corcho, caña, junco, mimbre, cuerno, hueso, marfil, ballena, concha, ámbar, nácar, espuma de mar, sucedáneos de todas estas materias o materias plásticas | goods included in class 20 of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of- pearl, meerschaum and substitutes for all these materials, or of plastics |
| patents. | productos, no comprendidos en otras clases, de madera, corcho, caña, junco, mimbre, cuerno, hueso, marfil, ballena, concha, ámbar, nácar, espuma de mar, sucedáneos de todas estas materias o materias plásticas | goods not included in other classes of wood, cork, reed, cane, wicker, horn, bone, ivory, whalebone, shell, amber, mother-of-pearl, meerschaum and substitutes for all these materials, or of plastics |
| gen. | sucedáneos de concha | tortoiseshell imitation |