noun. invertebrate having a soft unsegmented body usually enclosed in a shell.
- cephalopod mollusk
- phylum Mollusca
- coat-of-mail shell
- sea cradle
- mollusque (French)
- Mollusca (Latin)
Example sentences of the word mollusc
1. Noun, singular or mass
Mussels are a type of mollusc that live on the bottom of the body of water they inhabit.
Seashells are sea animal shells, mostly mollusc shells made of calcium carbonate.