hadrosaurid


had·ro·saur·id

H5008550 (hăd′rə-sôr′ĭd)n. Any of various herbivorous ornithischian dinosaurs of the family Hadrosauridae of the Cretaceous Period, having a broad toothless beak, numerous teeth in the back of the jaw, a stiff tail, and sometimes a crest on the head. Also called duckbill, duck-billed dinosaur, hadrosaur.
[From New Latin Hadrosauridae, family name, from Hadrosaurus, type genus; see hadrosaurus.]
had′ro·saur′id adj.