Definition of apatosaur in English:


Syllabification: a·pa·to·saur
Pronunciation: /ˈapətōˌsôr
(also apatosaurus /ˌapətōˈsôrəs/)


  • A huge herbivorous dinosaur of the late Jurassic period, with a long neck and tail. Also called brontosaur.
    • Genus Apatosaurus (popularly Brontosaurus), infraorder Sauropoda, order Saurischia
    More example sentences
    • As Christians who reject evolutionary theory, the family scoffed at the park's dinosaur attractions, which date the apatosaurus, brachiosaurus and the like to prehistoric times.
    • He said continuing research into the species is important because of larger evolutionary questions, including their relationship to the much larger sauropod dinosaurs, including brachiousaurus and apatosaurus.
    • And one of the marvelous things God described to Job sounds very much like an apatosaurus.





modern Latin, from Greek apatē 'deceit' + sauros 'lizard'.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day astrogation
Pronunciation: ˌastrə(ʊ)ˈgeɪʃ(ə)n
(in science fiction) navigation in outer space