Apatosaurus Definition

ə-pătə-sôrəs

noun

A very large herbivorous sauropod dinosaur of the genus Apatosaurus of the Jurassic Period, having a long neck and tail and a small head.

American Heritage

Any of a genus (Apatosaurus) of huge sauropod dinosaurs of the Late Cretaceous, weighing more than 18,000 kg (20 tons)

Webster's New World

Synonyms:

pronoun

A taxonomic genus within the subfamily Apatosaurinae.

Wiktionary

Origin of Apatosaurus

New Latin Apatosaurus unreal lizard, genus name Greek apatē untruth, lie Greek sauros lizard

From American Heritage Dictionary of the English Language, 5th Edition

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