boat shell

noun — 2 senses

boat shell

noun
1

Biology, Natural sciences, Zoology A marine gastropod of the genus Crepidula. The species are numerous.

2

Biology, Natural sciences, Zoology A marine univalve shell of the genus Cymbium, syn. Cymba.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.