ascidian[ə sid′ē ən]
ascidian definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
any of a class (Ascidiacea) of fixed tunicates; sea squirt
Origin: ; from Modern Latin ; from Classical Greek askidion: see ascidium
ascidian definition by American Heritage Dictionary
See sea squirt.
Origin: From New Latin Ascidia, genus name, from Greek askidion, diminutive of askos, wineskin.