tusk shell is a noun meaning "any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing". It carries one recorded sense.
any of various seashore mollusks having a tapering tubular shell open at each end and a foot pointed like a spade for burrowing
Definitions, synonyms and semantic relations for tusk shell come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.