Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

brontosaurus

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

Simple Definition of brontosaurus

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

Full Definition of brontosaurus

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

Variants of brontosaurus

also bron·to·saur play \ˈbrän-tə-ˌsȯr\

Origin of brontosaurus

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


First Known Use: 1892

Rhymes with brontosaurus


BRONTOSAURUS Defined for Kids

brontosaurus

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

Definition of brontosaurus

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




Seen and Heard

What made you want to look up brontosaurus? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift duvet kittly-benders pince-nez
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ