| reçu | establecido |
| Reître | Reiter |
| RFLAGS | Registro de estado |
| RG | Ragusa |
| RG veda | RG Veda |
| RH | Rh |
| Rhabditida | Rhabditida |
| Rhabdodon | Rhabdodon |
| rhabdomancien | zahorí |
| rhabdomancienne | zahorí |
| Rhabdoviridae | Rhabdovirus |
| Rhacodactylus | Rhacodactylus |
| Rhacodactylus auriculatus | Rhacodactylus auriculatus |
| Rhacodactylus ciliatus | Rhacodactylus ciliatus |
| Rhacodactylus leachianus | Rhacodactylus leachianus |
| Rhacodactylus sarasinorum | Rhacodactylus sarasinorum |
| Rhadamante | Radamanto |
| Rhadamanthe | Radamanto |
| Rhadamanthus | Radamanto |
| Rhamnaceae | Rhamnaceae |
| Rhamnales | Rhamnales |
| Rhamnus | Rhamnus |
| Rhamphorhynchus | Rhamphorhynchus |
| rhapsodie | rapsodia |
| rhapsodique | rapsódico |
| Rhapsody in Blue | Rhapsody in Blue |
| Rhapsody of Fire | Rhapsody of Fire |
| Rhea | Rheiformes |
| Rheidae | Rheiformes |
| Rheineck | Rheineck |
| RheinEnergieStadion | RheinEnergieStadion |
| Rheingau | Rheingau |
| Rheinsberg | Rheinsberg |
| Rheobatrachus | Rheobatrachus silus |
| Rhin | Rin |
| Rhin Neuss | Rhein-Kreis Neuss |
| Rhin-Berg | Rheinisch-Bergischer Kreis |
| Rhin-Erft | Rhein-Erft-Kreis |
| Rhin-Ruhr | Región Rin-Ruhr |
| Rhin-Sieg | Rhein-Sieg-Kreis |
| Rhine | Rin |
| Rhingau | Rheingau |
| Rhinite chronique | Rinitis |
| rhino- | rino- |
| Rhinobatidae | Rhinobatidae |
| Rhinoceros sondaicus | Rhinoceros sondaicus |
| Rhinocryptidae | Rhinocryptidae |
| rhinocéros | rinoceronte |
| Rhinocéros blanc | Ceratotherium simum |
| Rhinocéros de Dürer | Rinoceronte de Durero |
| Rhinocéros de Sumatra | Dicerorhinus sumatrensis |
| Rhinocéros indien | Rhinoceros unicornis |
| Rhinocéros laineux | Coelodonta antiquitatis |
| Rhinocéros noir | Diceros bicornis |
| Rhinolophidae | Rhinolophidae |
| rhinoplastie | rinoplastia |
| Rhipsalis | Rhipsalis |
| Rhizobium | Rhizobium |
| rhizome | rizoma |
| Rhizophoraceae | Rhizophoraceae |
| Rhizophorales | Rhizophoraceae |
| rhizosphère | rizosfera |
| Rhizostomeae | Rhizostomae |
| Rho Cassiopeiae | Rho Cassiopeiae |
| Rhode Island | Rhode Island |
| Rhode-Island Red | Rhode Island |
| Rhodes | Rodas |
| Rhodesian Ridgeback | Rhodesian Ridgeback |
| rhodium | rodio |
| rhododendron | rododendro |
| Rhodope | Ródope |
| Rhodopes | Montañas Ródope |
| Rhodophyta | Rhodophyta |
| Rhodopsine | Rodopsina |
| Rhodé | Rodo |
| Rhodésie | Rhodesia |
| Rhodésie du Sud | Rhodesia |
| Rhoipteleaceae | Rhoipteleaceae |
| rhombe | rombo |
| rhombique | romboidal |
| rhomboèdre | romboedro |
| rhomboédrique | romboédrico |
| rhombus | rombo |
| Rhona Mitra | Rhona Mitra |
| Rhone | Ródano |
| Rhopalocères | Mariposa |
| rhubarbe | ruibarbo |
| Rhubarbe géante | Gunnera |
| rhum | ron |
| rhumatisant | reumático |
| rhumatismal | reumático |
| rhumatisme | reumatismo |
| rhumatisme articulaire aigu | fiebre reumática |
| rhumatoïde | reumático |
| rhume | resfriado |
