mussel

US /ˈmʌs.əl/
UK /ˈmʌs.əl/
"mussel" picture
1.

moule

a bivalve mollusk, typically with a dark brown or purplish-black shell, living attached to rocks or other hard surfaces in the sea or fresh water.

:
We had fresh mussels for dinner.
Nous avons mangé des moules fraîches pour le dîner.
The rocks were covered with tiny mussels.
Les rochers étaient couverts de petites moules.