Apatosaurus dictionary definition

apatosaurus

[ə pat′ə sôr′əs, ap′ət ə-]

A group of apatosaurus or brontosaurus

noun

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

or a·pat·o·saur

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.

Origin of apatosaurus

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

Noun

(plural apatosauruses)

A very large sauropod dinosaur of the genus Apatosaurus (Brontosaurus) of the late Jurassic Period. Apatosaurs had a long neck and tail and a relatively small head.