brontosaurus

play
noun bron·to·sau·rus \ˌbrän-tə-ˈsȯr-əs\

Definition of brontosaurus

  1. :  any of a genus (Apatosaurus syn. Brontosaurus) of large sauropod dinosaurs of the Jurassic —called also apatosaurus

Variants of brontosaurus

less commonly

brontosaur

play \ˈbrän-tə-ˌsȯr\

Origin and Etymology of brontosaurus

New Latin, from Greek brontē thunder + sauros lizard; akin to Greek bremein to roar


First Known Use: 1892


BRONTOSAURUS Defined for English Language Learners

brontosaurus

play
noun bron·to·sau·rus \ˌbrän-tə-ˈsȯr-əs\

Definition of brontosaurus for English Language Learners

  • : a very large dinosaur that had a long neck and tail


BRONTOSAURUS Defined for Kids

brontosaurus

play
noun bron·to·sau·rus \ˌbrän-tə-ˈsȯr-əs\

Definition of brontosaurus for Students

  1. :  a huge plant-eating dinosaur with a long neck and tail and four thick legs


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