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water-vascular system

[waw-ter-vas-kyuh-ler, wot-er-]

noun

Zoology.

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

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Word History and Origins

Origin of water-vascular system1

First recorded in 1865–70

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water vapourWaterville

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