Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun ark_shell

1 sense of ark shell

Sense 1
ark shell -- (marine bivalve mollusk having a heavy toothed shell with a deep boat-like inner surface)
       => bivalve, pelecypod, lamellibranch -- (marine or freshwater mollusks having a soft body with platelike gills enclosed within two shells hinged together)