| English | French |
| Bolivian red-winged tinamou | tinamou roux guaipo (Rhynchotus rufescens maculicollis) |
| coralline red algae | algue rouge corallienne |
| corallogenic concretion of red algae | concrétion coralligène d'algues rouges |
| infra-red Fourier transform spectroscopy | spectroscopie infrarouge à transformation de Fourier |
| infra-red Fourier transform spectroscopy | spectroscopie infrarouge transformée de Fourier |
| Madagascar red owl | effraie rousse de Madagascar (Tyto soumagnei) |
| Madagascar red owl | effraie de Soumagne (Tyto soumagnei) |
| non-dispersive infra-red absorption analyzer | analyseur non dispersif à absorption dans l'infrarouge |
| North American red-eared terrapin | tortue à oreilles rouges (Trachemys scripta elegans) |
| North American red-eared terrapin | tortue à tempes rouges (Trachemys scripta elegans) |
| North American red-eared terrapin | trachémyde écrite (Trachemys scripta elegans) |
| North American red-eared terrapin | tortue de Floride (Trachemys scripta elegans) |
| Northern red-legged frog | grenouille du Nord à pattes rouges (Rana aurora) |
| OECD red tier | niveau rouge |
| phenol red solution | solution de rouge de phénol |
| red algae | algues rouges |
| red algae | Rhodophytes |
| red and blue lory | lori arlequin (Eos histrio) |
| red-backed squirrel monkey | samiri à dos roux (Saimiri oerstedii) |
| red-backed squirrel monkey | saïmiri au dos rouge (Saimiri oerstedii) |
| red bear | ours Isabelle (Ursus arctos isabellinus) |
| red bear | ours brun (Ursus arctos isabellinus) |
| red bellied spider monkey | atèle de Geoffroy du Panamá (Ateles geoffroyi panamensis) |
| red-billed curassow | hocco de Blumenbach (Crax blumenbachii) |
| red-billed firefinch | amarante à bec rouge (Lagonosticta senegala) |
| red-billed firefinch | sénégali amarante (Lagonosticta senegala) |
| red-billed firefinch | amarante du Sénégal (Lagonosticta senegala) |
| red-breasted flycatcher | gobe-mouches nain (Ficedula parva) |
| red-browed parrot | amazone à sourcils rouges (Amazona rhodocorytha) |
| red-browed parrot | amazone à couronne rouge (Amazona rhodocorytha) |
| red-capped parrot | caïque mitré (Pionopsitta pileata) |
| red-cheeked cordonbleu | cordonbleu à joues rouges (Estrilda bengala, Uraeginthus bengalus) |
| red-cheeked cordonbleu | cordon-bleu (Estrilda bengala, Uraeginthus bengalus) |
| red-cheeked cordonbleu | astrild papillon (Estrilda bengala, Uraeginthus bengalus) |
| red-collared widowbird | veuve noire (Coliuspasser ardens, Euplectes ardens) |
| red-collared widowbird | euplecte veuve-noire (Coliuspasser ardens, Euplectes ardens) |
| red colobus | colobe bai de Zanzibar (Procolobus pennantii kirkii) |
| red-crested cardinal | paroare huppé (Paroaria coronata) |
| red-crowned amazon | amazone à couronne rouge (Amazona rhodocorytha) |
| red-crowned amazon | amazone à sourcils rouges (Amazona rhodocorytha) |
| red-crowned crane | grue blanche du Japon (Grus japonensis) |
| red-crowned crane | grue de Mandchurie (Grus japonensis) |
| red-crowned parrot | amazone à sourcils rouges (Amazona rhodocorytha) |
| red data book | liste rouge |
| red dead-nettle | lamier rouge (Lamium purpureum) |
| red dead-nettle | lamier pourpre (Lamium purpureum) |
| red earth | argile rouge |
| red-faced pytilia | pytilie à ailes jaunes (Pytilia hypogrammica) |
| red-faced pytilia | beaumarquet à ailes jaunes (Pytilia hypogrammica) |
| red flag warning | alerte rouge |
| red-fronted amazon | amazone de Porto Rico (Amazona vittata) |
| red-fronted amazon | amazone à bandeau rouge (Amazona vittata) |
| red-fronted kakariki | perruche de Sparrman (Cyanoramphus novaezelandiae) |
| red-fronted kakariki | perruche de Nouvelle-Zélande (Cyanoramphus novaezelandiae) |
| red-fronted kakariki | perruche à bandeau rouge (Cyanoramphus novaezelandiae) |
| red-fronted macaw | ara de Lafresnaye (Ara rubrogenys) |
| red-fronted parakeet | perruche de Sparrman (Cyanoramphus novaezelandiae) |
| red-fronted parakeet | perruche à bandeau rouge (Cyanoramphus novaezelandiae) |
| red-fronted parakeet, red-fronted kakariki, New Zealand parakeet | perruche de Nouvelle-Zélande ou à bandeau rouge (Cynamoramphus novaezelandiae) |
| red-fronted serin | serin à front d'or (Serinus pusillus) |
| red-fronted serin | serin à front rouge (Serinus pusillus) |
| red-headed malimbe | malimbe à tête rouge (Malimbus rubricollis) |
| red list The series of publications produced by the International Union for the Conservation of Nature and Natural Resources (IUCN). They provide an inventory on the threat to rare plants and animal species. Information includes status, geographical distribution, population size, habitat and breeding rate. The books also contain the conservation measures, if any, that have been taken to protect the species. There are five categories of rarity status: endangered species; vulnerable organisms, which are those unlikely to adapt to major environmental effects; rare organisms, which are those at risk because there are few of them in the world, such as plants which only grow on mountain peaks or on islands; out of danger species, which were formerly in the above categories, but have had the threat removed because of conservation actions; and indeterminate species, which are the plants and animals probably at risk, although not enough is known about them to assess their status | liste rouge |
| Red List | liste rouge |
| red list | liste rouge |
| Red List of Threatened Animals | liste rouge des espèces animales menacées |
| Red List of Wadden Sea species and biotopes | liste rouge des espèces et des biotopes de la mer des Wadden |
| Red list of wastes | Liste rouge de déchets |
| red mud | boues rouges |
| red mud | boue rouge |
| red mud from the alumina production | boues rouges issues de la production d'alumine |
| red-necked amazon | amazone de Bouquet (Amazona arausiaca) |
| red-necked amazon | amazone à cou rouge (Amazona arausiaca) |
| red-necked phalarope | petit phalarope (Phalaropus lobatus) |
| red-nosed saki | saki à nez blanc (Chiropotes albinasus) |
| red-rumped conure | conure tiriba (Pyrrhura cruentata) |
| red-rumped conure | conure à gorge bleue (Pyrrhura cruentata) |
| red seaweeds | algues rouges (Rhodophyceae) |
| red-shanked Douc Langur | douc (Pygathrix nemaeus) |
| red-shouldered hawk | buse à épaulettes (Buteo lineatus) |
| red siskin | tarin rouge du Vénezuela (Carduelis cucullata) |
| red sludge | boues rouges |
| red-spectacled amazon | amazone de Prêtre (Amazona petrei, Amazona pretrei) |
| red-spectacled parrot | amazone de Prêtre (Amazona petrei, Amazona pretrei) |
| red spider monkey | atèle de Geoffroy du Panamá (Ateles geoffroyi panamensis) |
| red-tailed amazon | amazone à joues bleues (Amazona brasiliensis) |
| red-tailed amazon | amazone à queue rouge (Amazona brasiliensis) |
| red-tailed amazon | amazone du Brésil (Amazona brasiliensis) |
| red-throated diver | plongeon catmarin (Gavia stellata) |
| red tide | marée rouge |
| red tide Sea water which is covered or discoloured by the sudden growth of algal bloom or by a great increase in single-celled organisms, dinoflagellates. Red tides are often fatal to many forms of marine life and, in some cases, can result in human deaths because the dinoflagellates are eaten by clams and mussels which concentrate the paralysing toxins which they produce | marée rouge |
| red tide | eaux rouges |
| red tides | marées rouges |
| red-vented cockatoo | cacatoès des Philippines (Cacatua haematuropygia) |
| red-winged blackbird | troupiale à épaules rouges (Agelaius phoeniceus) |
| red-winged blackbird | étourneau aux ailes rouges (Agelaius phoeniceus) |
| red-winged blackbird | carouge à épaulettes (Agelaius phoeniceus) |
| red-winged pytilia | beaumarquet aurore (Pytilia phoenicoptera) |
| red-winged pytilia | diamant aurore (Pytilia phoenicoptera) |
| red-winged pytilia | pytilie à ailes rouges (Pytilia phoenicoptera) |
| red-winged pytilia | astrild aurore (Pytilia phoenicoptera) |
| Tana river red colobus | colobe bai de Tana |
| the photometric measurement of the red colouration | la coloration rouge est photométrée |
