barnacle

US /ˈbɑːr.nə.kəl/
UK /ˈbɑːr.nə.kəl/
"barnacle" picture
1.

balano, lepade

a marine crustacean with an external shell, which attaches itself permanently to a variety of surfaces including ship bottoms, rocks, and whales.

:
The ship's hull was covered in barnacles.
Lo scafo della nave era coperto di balani.
We saw many barnacles clinging to the rocks at low tide.
Abbiamo visto molti balani aggrappati alle rocce con la bassa marea.