water-vascular system Hear it!

water-vascular system definition

water-vascular system (-vas′kyə lər)

in echinoderms, a system of closed tubes and ducts filled with sea water containing some protein, and functioning variously, as in locomotion, food gathering, clinging, and respiration

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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