bladderwort 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 large genus (Utricularia) of chiefly aquatic plants of the bladderwort family, having finely divided leaves with bladders on them that trap small insects and crustaceans
designating a family (Lentibulariaceae, order Scrophulariales) of dicotyledonous plants
bladderwort definition by American Heritage Dictionary
Any of various mostly aquatic carnivorous plants of the genus Utricularia, having small, specialized, urn-shaped bladders that trap minute insects and crustaceans.