WordReference Random House Learner's Dictionary of American English © 2025
sea•shell or sea shell /ˈsiˌʃɛl/USA pronunciation
n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- Invertebratesthe shell of an oyster, clam, or other sea-living mollusk.
sea•shell
(sē′shel′),USA pronunciation n.
- Invertebratesthe shell of any marine mollusk.
- Old English sǣscill (not recorded in Middle English) see sea, shell bef. 900
'sea shell' also found in these entries (note: many are not synonyms or translations):