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brontosaurus
noun
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How to pronounce brontosaurus:

Definition of brontosaurus:

brontosaurus (noun):
huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic.
any of a genus (apatosaurus) of very large sauropod dinosaurs of the late jurassic apatosaurus

Synonyms for brontosaurus:

apatosaurus

Other 4-syllable words like brontosaurus

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