| Subject | Spanish | English |
| ed., social.sc. | abandono escolar prematuro | dropout |
| med. | alimentación de prematuros | breeding of premature infants |
| med. | anemia del prematuro | premature infant's anaemia |
| med. | anemia hemolítica del prematuro | haemolitic anaemia of premature infants |
| health. | atención de prematuros | premature care |
| nat.sc., agric. | caída prematura de los frutos | premature fruit fall |
| nat.sc., agric. | caída prematura de los frutos | premature fruit drop |
| IT, el. | circuito de detección del encendido prematuro | circuit for detecting pre-ignition |
| chem. | coagulación prematura | premature coagulation |
| med. | contracción prematura | premature beat |
| med. | contracción prematura | extrasystole |
| med. | crianza de prematuros | breeding of premature infants |
| med. | cuidados del prematuro | care of premature infants |
| agric. | destete prematuro | early weaning |
| med. | determinación del grado de maduración del prematuro | maturity determination on premature infants |
| coal. | detonación prematura | premature explosion |
| coal. | detonación prematura | premature blast |
| transp. | efecto de ignición prematura | backfiring effect |
| mech.eng., el. | encendido prematuro | premature ignition |
| transp., el. | encendido prematuro | pre-ignition |
| gen. | entrada prematura | premature entry |
| gen. | entrada prematura | early entry |
| el. | envejecimiento prematuro | premature ageing |
| health. | envejecimiento prematuro | premature aging |
| coal. | explosión prematura | premature firing |
| tech. | explosión prematura | premature explosion |
| tech. | explosión prematura | back kick |
| tech. | explosión prematura dentro del ánima | cook off |
| health. | eyaculación prematura | premature ejaculation |
| med. | eyaculación prematura | premature ejaculation (ejaculatio praecox) |
| med. | eyaculación prematura | prospermia (ejaculatio praecox) |
| el. | fallo prematuro | premature failure |
| stat., tech. | fallo prematuro | early failure |
| nat.sc., agric. | germinacion prematura | premature germination |
| bot. | granazón prematura | bolting |
| life.sc., agric. | helada prematura | early frost |
| med. | hábito del prematuro | premature infants'habitus |
| med. | ictericia del prematuro | premature infants'icterus |
| chem. | ignición prematura | premature ignition |
| agric. | ignición prematura | backfiring |
| law | La Ley Contra la Excarcelación prematura | No Early Release Act NERA |
| commun. | liberación prematura | premature release |
| nat.sc., agric. | maduración prematura | precocious ripening |
| nat.sc., agric. | madurez prematura | precocious ripening |
| agric. | madurez prematura | premature ripening |
| med. | megalocefalia del prematuro | premature infants'megalocephaly |
| health. | menopausia prematura | premature menopause |
| med. | morfotipo del prematuro | premature infants'habitus |
| health. | nacimiento prematuro | premature delivery |
| health. | nacimiento prematuro | premature confinement |
| health. | nacimiento prematuro | premature birth |
| med. | niño prematuro | preterm infant |
| agric. | parto prematuro | premature calving |
| ecol. | pastoreo prematuro | premature grazing |
| el. | periodo de fallo prematuro | initial failure period |
| el. | periodo de fallo prematuro | early failure period |
| el. | periodo de fallo prematuro | debugging period |
| stat., tech. | período de fallos prematuros | early failure period |
| gen. | probabilidad de liberación prematura | premature release probability |
| gen. | probabilidad de liberación prematura | cut-off call probability |
| med. | raquitismo del prematuro | premature infants'rachitis |
| med. | retinopatía del prematuro | retinopathy of prematurity (fibroplasia retrolentalis) |
| med. | retinopatía del prematuro | retrolental fibroplasia (fibroplasia retrolentalis) |
| med. | retinopatía del prematuro | Terry's syndrome (fibroplasia retrolentalis) |
| med. | ruptura prematura de las membranas | premature rupture of membranes |
| med. | telarquia prematura | swelling of mammary glands in newborn |
| transp., mater.sc. | tiempo medio entre desmontajes prematuros | mean time between premature removals |
| med. | unidad de prematuros | premature baby unit |
| gen. | vulcanización prematura | scorch |
