| Subject | English | Spanish |
| med. | articular crescent | cartílago falciforme (meniscus articularis) |
| med. | articular crescent | cartílago sigmoideo (meniscus articularis) |
| med. | articular crescent | cartílago semilunar (meniscus articularis) |
| med. | articular crescent | menisco articular (meniscus articularis) |
| health. | Bangladesh Red Crescent Society | Sociedad de la media luna roja de Bangladesh |
| industr., construct. | court shoe crescent reinforcement | refuerzo de escote |
| mech.eng. | Crescent adjustable wrench | llave de cremallera |
| mech.eng. | Crescent adjustable wrench | llave de moleta |
| mech.eng. | Crescent belt fastener | grapa para correas |
| med. | crescent-cell anemia | anemia drepanocitica |
| med. | crescent-cell anemia | anemia de Dresbach |
| med. | crescent-cell anemia | meniscocitosis |
| med. | crescent-cell anemia | anemia de Herrick |
| med. | crescent-cell anemia | anemia a glóbulos falciformes |
| med. | crescent cells | células semilunares |
| med. | crescent cells | células de Gianuzzi |
| med. | crescent cells | células marginales |
| nat.sc., agric. | crescent-marked lily aphid | pulgón de la azucena (Aulacorthum circumflexus, Myzus circumflexus, Neomyzus circumflexus) |
| industr., construct. | crescent resistance | resistencia al desgarro |
| bot. | crescent-shaped | lunular |
| industr., construct. | crescent-shaped abrasive | medio disco abrasivo |
| med. | crescent-shaped markings | semilunas |
| transp. | crescent-shaped rib | costilla de arco |
| med. | crescent-shaped sign | signo de la semiluna |
| mater.sc. | crescent shaped testpiece | probeta en forma de media luna |
| med. | crescent-shaped tongue | lengua en semiluna |
| gen. | crescent tear test | ensayo de desgarro |
| industr., construct. | crescent toe-cap | puntera tope mocasín |
| mech.eng. | crescent transversely adjustable | llave de moleta |
| mech.eng. | Crescent transversely adjustable | llave de moleta |
| transp. | crescent wing | ala en media luna |
| mech.eng. | crescent wrench | llave inglesa |
| mech.eng. | crescent wrench | llave ajustable |
| mech.eng. | Crescent wrench | llave de cremallera |
| mech.eng. | Crescent wrench transversely adjustable | llave de moleta |
| med. | crescents of spinal cord | cuernos de la medula espinal |
| polit. | Egyptian Red Crescent Society | Sociedad Egipcia de la Media Luna Roja |
| med. | epithelial crescent | creciente epitelial |
| med. | Gianuzzi's crescents | células semilunares de Gianuzzi |
| med. | Gianuzzi's crescents | crecientes de Gianuzzi |
| geogr. | Golden Crescent | Media Luna de Oro |
| med. | Heidenhain crescent | semilunas de Heidenhain |
| social.sc., health. | International Federation of Red Cross and Red Crescent Societies | Federación Internacional de Sociedades de la Cruz Roja y de la Media Luna Roja |
| UN, AIDS. | International Federation of Red Cross and Red Crescent Societies IFRC | Federación Internacional de Sociedades de la Cruz Roja y de la Media Luna Roja (FICR) |
| obs., social.sc., health. | International Federation of Red Cross and Red Crescent Societies | Liga de Sociedades de la Cruz Roja y la Media Luna Roja |
| gen. | International Red Cross and Red Crescent Movement | Cruz Roja Internacional |
| gen. | International Red Cross and Red Crescent Movement | Movimiento Internacional de la Cruz Roja y de la Media Luna Roja |
| social.sc. | Iraqi Red Crescent Society | Sociedad Iraquí de la Media Luna Roja |
| org.name. | League of Red Cross and Red Crescent Societies | Liga de Sociedades de la Cruz Roja y de la Media Luna Roja |
| social.sc., health. | League of Red Cross and Red Crescent Societies | Federación Internacional de Sociedades de la Cruz Roja y de la Media Luna Roja |
| obs., social.sc., health. | League of Red Cross and Red Crescent Societies | Liga de Sociedades de la Cruz Roja y la Media Luna Roja |
| med. | malarial crescent | semiluna palúdica |
| med. | malarial crescent | gametocito |
| med. | myopic crescent | cono miópico (creciente) |
| med. | myopic crescent | creciente miópico (conus temporalis) |
| social.sc., health. | National Red Cross and Red Crescent Societies | Sociedades Nacionales de la Cruz Roja y de la Media Luna Roja |
| leath. | quarter crescent stay | refuerzo junta cañas |
| gen. | red crescent emblem | emblema de la media luna roja |
| med. | serous crescents | células semilunares |
| med. | serous crescents | células de Gianuzzi |
| med. | serous crescents | células marginales |