Dictionary
had•ro•saur
Pronunciation: (had'ru-sôr"), [key]—
n.
a bipedal dinosaur of the genus
Hadrosaurus, belonging to the ornithopod family Hadrosauridae of the late Cretaceous Period, having broad, flat jaws for scooping up water plants.
Also called duck-billed dinosaur. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.