| English | Spanish |
| anti-crepuscular rays | rayos anticrepusculares |
| blonde ray | raya boca de rosa (Raja brachyura) |
| blonde ray | escrita (Raja brachyura) |
| cuckoo ray | raya santiaguesa (Leucoraja naevus, Raja naevus) |
| cuckoo ray | raya santiguesa (Leucoraja naevus, Raja naevus) |
| cuckoo ray | raya de San Pedro (Leucoraja naevus, Raja naevus) |
| full-mouth x-ray | serie radiográfica periodontal |
| gamma-ray log | diagrafía gamma-ray |
| grazing ray | visual rasante |
| marbled electric ray | tremielga (Torpedo marmorata) |
| marbled electric ray | tremolina mármol (Torpedo marmorata) |
| marbled electric ray | torpedo (Torpedo marmorata) |
| marbled electric ray | temblón (Torpedo marmorata) |
| marbled electric ray | tembladera (Torpedo marmorata) |
| primary cosmic rays | rayos cósmicos primarios |
| Raja ray | raya (Raja spp.) |
| Raja rays | rayas raja nep (Raja spp.) |
| Raja rays | - (Raja spp.) |
| ray parenchyma | parénquima radial |
| ray parenchyma | parénquima de los radios |
| rayed tortoise | tortuga rayada (Astrochelys radiata, Geochelone radiata, Testudo radiata) |
| round ray | raya redonda (Rajella fyllae, Raja fyllae) |
| sandy ray | raya falsa vela (Leucoraja circularis, Raja circularis) |
| secondary cosmic rays | rayos cósmicos secundarios |
| shagreen ray | raya cardadora (Leucoraja fullonica, Raja chagrinea, Raja fullonica) |
| skates and rays | ráyidos nep (Rajidae) |
| small-eyed ray | raya de ojos (Raja microocellata) |
| small-eyed ray | raya colorada (Raja microocellata) |
| small-eyed ray | raya cimbreira (Raja microocellata) |
| spotted ray | raya pintada (Raja montagui) |
| spotted ray | raya fina (Raja montagui) |
| starry ray | raya radiada (Amblyraja radiata, Raja radiata) |
| starry ray | raya radiante (Amblyraja radiata, Raja radiata) |
| starry ray | raya estrellada (Amblyraja radiata, Raja radiata) |
| thornback ray | raya de clavos (Raja clavata) |
| thornback ray | raya común (Raja clavata) |
| undulate ray | raya mosaico (Raja undulata) |
| undulate ray | raya mosaica (Raja undulata) |
| wave rays | ortogonales del frente de ola |
| X-ray astronomy | astronomía de rayos X |
