Word.ws English Dictionary

brontosaurus

brontosaurus noun: any member of the genus †Brontosaurus of herbivorous sauropod dinosaurs with whip-like tails, which lived in present-day United States during the Late Jurassic period.

brontosaurus: any member of the genus †Brontosaurus of herbivorous sauropod dinosaurs with whip-like tails, which...
Image: Ad Meskens, CC BY-SA 3.0, via Wikimedia Commons

Noun

brontosaurus (plural brontosauruses or brontosauri)

  1. Any member of the genus †Brontosaurus of herbivorous sauropod dinosaurs with whip-like tails, which lived in present-day United States during the Late Jurassic period.
    • Near-synonym: thunder lizard (can denote a brontosaurus or an apatosaurus)

Synonyms of brontosaurus

Forms of brontosaurus

pluralbrontosauruses
pluralbrontosauri

Origin of brontosaurus

From New Latin, from Ancient Greek roots; by surface analysis, bronto- + -saurus (“thunder lizard”), according to the notion that its massive size must have made its footsteps shake the ground.

Questions about brontosaurus

What does brontosaurus mean?
Brontosaurus means any member of the genus †Brontosaurus of herbivorous sauropod dinosaurs with whip-like tails, which lived in present-day United States during the Late Jurassic period.
What part of speech is brontosaurus?
Brontosaurus is a noun.
What is the plural of brontosaurus?
The plural of brontosaurus is brontosauruses.

Words near brontosaurus in the dictionary

  1. brontornithids
  2. brontos
  3. brontosaur
  4. brontosauri
  5. brontosaurs
  6. brontosaurus
  7. brontosauruses
  8. brontoscopic
  9. brontoscopy
  10. brontotheology
  11. brontothere

Source and license

Adapted from Wiktionary: brontosaurus (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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