sea cucumber Meaning, Definition & Usage
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noun echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders
holothurian.
WordNet
Sea" cu"cum*ber
Definitions
(Zoöl.) Any large holothurian, especially one of those belonging to the genus Pentacta , orCucumaria , as the common American and European species. (P. frondosa ).