sea cucumber

noun

1. any echinoderm of the class Holothuroidea, having a long, leathery body with tentacles around the anterior end.

sea cucumber

noun

1. 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

sea cucumber

1. See holothurian

Word History and Origins

Origin of sea cucumber¹

First recorded in 1595–1605

Word History and Origins

Origin of sea cucumber¹

C17: so named because of its cucumber-like shape