brontosaur

Noun

bron=to=saur

WORDNET DICTIONARY

brontosaur(n = noun.animal) apatosaur, apatosaurus, apatosaurus excelsus, brontosaurus, thunder lizard - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic; Array

is a kind of sauropod, sauropod dinosaur

is a member of genus apatosaurus, genus brontosaurus

brontosaur, n. [NL., fr. Gr. bronth` thunder + say^ros lizard.].

a dinosaur of the genus Brontosaurus; an individual may also be called a brontosaurus or an apatosaurus. [PJC]