Definition of water-vascular system in English:

Share this entry

water-vascular system

noun

Zoology
(In an echinoderm) a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels.
Example sentences
  • These tube feet are extended and retracted by hydraulic pressure in the water-vascular system.
  • Like all echinoderms, echinoids are pentaradially symmetrical, have a water-vascular system, and have an internal skeleton made of calcitic ossicles (plates).
  • In starfish, only the left hydrocoel of the larva develops into the adult water-vascular system, while the right hydrocoel disappears.
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.