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Definition of brontosaur

brontosaur

/ˈbrɑːn.təˌsɔːr/
bron · to · saur
Plural:brontosaurs
•
Adjective:brontosaurian
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brontosaur Lexical Profile

brontosaur Game Scores & Validity

• noun

1

A large, herbivorous, quadrupedal sauropod dinosaur of the genus Brontosaurus (formerly grouped under Apatosaurus), native to Late Jurassic North America and characterized by a long neck, a heavy body, and a long, whip-like tail.

Synonyms
View all synonyms for brontosaur

• Nearby Words

bronchial
bronchitis
bronco
brontosaur
brontosaurus
bronx
bronze

Word Origin & Etymology

Shortened from the Neo-Latin genus name Brontosaurus, coined by American paleontologist Othniel Charles Marsh in 1879 from Ancient Greek brontē ('thunder') and sauros ('lizard').

Cite this Entry

Wordmom. (2026). Definition of Brontosaur. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/brontosaur
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