n. A large silvery cyprinid fish (Ctenopharyngodon idella) native to Siberia and China that feeds on vegetation and has been widely introduced to control aquatic weeds. Also called white amur.
grass′ carp`
n. a large weed-eating carp, Ctenopharyngodon idella, orig. native to China. EncyclopediaSeeWhite Amur