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| English | French |
| back feathers | plumes du dos |
| back rubber | gratte-dos à action chimique |
| back rubber | gratte-dos insecticide |
| back scratcher | gratte-dos insecticide |
| back scratcher | gratte-dos à action chimique |
| back side | face invisible |
| back side | face cachée |
| backing wind | vent reculant |
| backing wind | vent levogyre |
| black-back prominent | cérure du saule (Clostera anastomosis, Pygaera anastomosis) |
| calico back | punaise des choux (Murgantia histrionica) |
| calico back | punaise arlequine (Murgantia histrionica) |
| diamond-back moth | teigne du colza (Plutella maculipennis, Plutella xylostella) |
| green-back horse mackerel | chinchard à dos vert (Trachurus declivis) |
| leather-back turtles | tortues-cuir (Dermochelyidae) |
| leather-back turtles | dermochelydés (Dermochelyidae) |
| licked back | hypodermose |
| ploughing back | déchaussage |
| ploughing back | débuttage |
| saddle-back snapper | vivanette sellée (Paracaesio kusakarii) |