water-vascular system

[ waw-ter-vas-kyuh-ler, wot-er- ]
/ ˈwɔ tərˈvæs kyə lər, ˈwɒt ər- /

noun Zoology.

a system of closed, fluid-filled tubes and ducts of echinoderms used in clinging, locomotion, feeding, and respiration.

Origin of water-vascular system

First recorded in 1865–70
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019