brontosaurus

noun bron·to·sau·rus \ ˌbrän-tə-ˈsȯr-əs \
variants: or less commonly brontosaur play \ˈbrän-tə-ˌsȯr\

Definition of brontosaurus

: any of a genus (Apatosaurus) of very large sauropod dinosaurs of the Late Jurassic : apatosaurus
Note: The name brontosaurus continues to be commonly used for these dinosaurs even though their former genus name (Brontosaurus) is considered invalid.

Recent Examples of brontosaurus from the Web

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Origin and Etymology of brontosaurus

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


BRONTOSAURUS Defined for English Language Learners

brontosaurus

noun

Definition of brontosaurus for English Language Learners

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


BRONTOSAURUS Defined for Kids

brontosaurus

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

Definition of brontosaurus for Students

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

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