The Collaborative International Dictionary
lampshell \lampshell\, lamp shell \lamp shell\n. A mollusklike marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food, found worldwide.
Syn: brachiopod.
Terebratula \Ter`e*brat"u*la\, n.; pl. Terebratul[ae]. [Nl., dim. fr. terebratus, p. p., perforated.] (Zo["o]l.) A genus of brachiopods which includes many living and some fossil species. The larger valve has a perforated beak, through which projects a short peduncle for attachment. Called also lamp shell.
Wiktionary
alt. (context zoology uncommon English) A brachiopod. n. (context zoology uncommon English) A brachiopod.
WordNet
n. marine animal with bivalve shell having a pair of arms bearing tentacles for capturing food; found worldwide [syn: brachiopod, lampshell]