barnacle
US /ˈbɑːr.nə.kəl/
UK /ˈbɑːr.nə.kəl/

1.
따개비
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.
배의 선체는 따개비로 덮여 있었다.
•
We saw many barnacles clinging to the rocks at low tide.
썰물 때 바위에 많은 따개비가 붙어 있는 것을 보았다.