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Any of various cucumber-shaped echinoderms of the class Holothuroidea, characteristically having tentacles surrounding the mouth and a flexible body with tube feet usually arranged in longitudinal rows. Also called holothurian.
(Animals) any echinoderm of the class Holothuroidea, having an elongated body covered with a leathery skin and bearing a cluster of tentacles at the oral end. They usually creep on the sea bed or burrow in sand
[C17: so named because of its cucumber-like shape]
any echinoderm of the class Holothuroidea, having a long, body and tentacles around the mouth.
Any of various invertebrate sea animals related to starfish and sea urchins, having a rough cucumber-shaped body and a mouth surrounded by tentacles. To distract an attacking predator, a sea cucumber can expel some of its internal organs, which later grow back.
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|Noun||1.||sea cucumber - echinoderm having a flexible sausage-shaped body, tentacles surrounding the mouth and tube feet; free-living mud feeders|
echinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodies