 |
| English | Italian |
| back feathers | penne del dorso |
| back flow | rigurgito |
| backing wind | vento levogiro |
| calico back | cimice dei cavoli (Murgantia histrionica) |
| diamond-back moth | tignola del cavolo (Plutella maculipennis, Plutella xylostella) |
| green-back horse mackerel | sugarello australe (Trachurus declivis) |
| leather-back turtles | dermochelidi (Dermochelyidae) |
| licked back | ipodermosi |
| ploughing back | scalzatura |