barnacle

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

Seepocke, Entenmuschel

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.
Der Schiffsrumpf war mit Seepocken bedeckt.
We saw many barnacles clinging to the rocks at low tide.
Wir sahen viele Seepocken, die bei Ebbe an den Felsen klebten.