sea cucumber

sea cucumber

n.

Any of various cucumber-shaped echinoderms of the class Holothuroidea, having a flexible body with tentacles surrounding the mouth.

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sea cucumber

See holothurian.

Thesaurus

Noun

1.

sea cucumber - echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders holothurian echinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodies class Holothuroidea, Holothuroidea - class of echinoderms including the sea cucumbers Holothuria edulis, trepang - of warm coasts from Australia to Asia; used as food especially by Chinese