| Subject | English | Spanish |
| transp., tech. | aluminium shell covered by a pliable skin | cascarón de aluminio recubierto de piel flexible |
| fishery | amnesic shell-fish poison | veneno amnésico de los mariscos |
| fishery | amnesic shell-fish poison | veneno amnésico de mariscos |
| fishery | amnesic shell-fish poison | veneno amnésico de moluscos |
| chem. | anticlastic shell | concha con curvaturas opuestas |
| agric., food.ind. | beans for shelling | judías para desgranar |
| mech.eng. | bearing shell | tejuelo |
| mech.eng. | bearing shell | aro |
| mech.eng. | bearing shell | buje |
| mech.eng. | bearing shell | anillo |
| mech.eng. | bearing shell | forro |
| mech.eng. | bearing shell | casquillo |
| mech.eng. | bearing shell | cojinete |
| agric. | cacao shells | cascarilla de cacao |
| fish.farm. | carpet shell | almeja (Tapes aureus, Tapes decussatus, Tapes japonica, tapes variegata, Tapes, venerupis spp., Tapes virginea) |
| nat.res., fish.farm. | carpet shells | almejas (Tapes spp.) |
| ichtyol. | carpet shells | almejas Tapes |
| life.sc., fish.farm. | carpet shells | almeja (Ruditapes) |
| transp. | ceramic shell | molde de cerámica |
| agric. | cocoa shells | cascarilla de cacao |
| agric. | coffee bean shelling-polishing | despellejamiento |
| agric. | coffee bean shelling-polishing | descerezamiento |
| nat.sc., agric. | comb shell | rabioso (Glycymeris glycymeris (Linnaeus,1767), Pectunculus glycymeris) |
| transp. | conical shell of circular section | envuelta cónica de sección circular |
| el. | connector-shell | caja de un conector |
| agric. | crushed oyster shells | conchas trituradas |
| hobby, cultur. | cylindrical shell | envolvente cilíndrico |
| transp., mech.eng. | cylindrical shell of circular section | envuelta cilíndrica de sección circular |
| hobby, cultur. | cylindrical shell portion | envolvente cilíndrico |
| agric. | egg shell | cáscara |
| agric. | egg shell | cascarón |
| agric. | egg shelling plant | planta cascadora de huevos |
| chem. | electron shell | capa electrónica |
| earth.sc. | electronic shell | envoltura electrónica |
| chem. | electronic shell | capa electrónica |
| auto. | front shell | caja delantera (e.g. case or housing) |
| auto. | front shell | cubierta delantera (e.g. case or housing) |
| met., el. | furnace shell | carcasa |
| met., el. | furnace shell | virola |
| met., el. | furnace shell | camisa |
| chem. | glass in shells | vidrio en semicilindros |
| patents. | 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 | 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 |
| transp., mech.eng. | half-shell | semicoquilla |
| el. | hemispherical-base cylinder with a double shell of zircaloy | cilindro con un fondo hemisférico y una vaina doble de zircaloy |
| antenn. | inner-shell electron | electron interno |
| agric. | machine for shelling nuts | máquina para mondar y cascar nueces |
| agric. | machine for shelling peas | máquina de desvainar guisantes |
| antenn. | outer-shell electron | electron periférico |
| econ., agric., fish.farm. | oyster shells | conchilla de ostra |
| gen. | oyster shells | conchas de ostras |
| el. | radar device for proximity fuses of shells | radar de cohete proyectil llamado de proximidad |
| fish.farm. | razor shell | longeiron (Ensis directus, Ensis siliqua, Siliqua patula, Solen ensis, ensis ensis, Solen marginatus, Solen vagina) |
| fish.farm. | razor shell | navajas (Solenidae) |
| fish.farm. | razor shell | navaja (Ensis directus, Ensis siliqua, Siliqua patula, Solen ensis, ensis ensis, Solen marginatus, Solen vagina) |
| nat.sc., agric. | razor shells | navajas (Solenidae) |
| auto. | rear shell | caja trasera (e.g. case or housing) |
| auto. | rear shell | cubierta trasera (e.g. case or housing) |
| agric. | self-shelling | autodesgrane |
| agric. | self-shelling | autodesgranado |
| chem. | shell-and-tube exchanger | termointercambiador de carcase y tubos |
| industr., construct., chem. | shell bevel | bisel en rosario |
| life.sc., el. | shell boiler | caldera de cavidad |
| antenn. | shell circuit | circuito en concha |
| chem. | shell-flour filler | material rellenador (fabricado de polvo de cáscaras) |
| met., el. | shell height | altura de la cuba por encima de la puerta de carga |
| life.sc. | shell ice | cáscara de hielo |
| chem. | shell moulding | fundición en coquilla |
| chem. | shell moulding | colada en coquilla |
| commun., IT | shell PC | ordenador de red |
| met., el. | shell volume | volumen del horno |
| agric. | shelling facility for dry fruit | planta para descascarado de frutos secos |
| life.sc., agric. | shelling pea | guisante liso |
| life.sc., agric. | Shelling peas | guisante liso |
| agric. | shelling plate | canal recuperador de grano |
| transp., mech.eng. | spherical cock-shell | cuerpo esférico de grifo |
| coal., industr., construct. | steel pressure-resistant shells of seamless cylinders | revestimientos de resistencia de acero de las botellas sin soldaduras |
| met. | strand shell | costra |
| nat.sc. | synclastic shell | cáscara sinclástica |
| nat.sc. | synclastic shell | bóveda laminar sinclástica |
| chem. | synclastic shell | concha con curvaturas orientadas en el mismo sentido |
| patents. | terracotta fish and shells | peces y conchas de terracota |
| gen. | to shell a walnut | partir una nuez |
| fish.farm. | top shell | caramujo (Monodonta turbinata, Turbo cornutus) |
| nat.sc. | tortoise-shell | concha |
| gen. | tortoise shell | carey |
| ichtyol. | turban shells | turbinas ex Turbo spp |
| ichtyol. | West Indian top shell | burgado antillano Cittarium pica |