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a·pat·o·saur·us(ə-păt′ə-sôr′əs) or a·pat·o·saur (ə-păt′ə-sôr′)
A very large herbivorous sauropod dinosaur of the genus Apatosaurus of the Jurassic Period, having a long neck and tail and a small head.
[New Latin Apatosaurus, unreal lizard, genus name : Greek apatē, untruth, lie + Greek sauros, lizard.]
a·pat·o·sau·rus(ə-păt′ə-sôr′əs) or a·pat·o·saur (ə-păt′ə-sôr′)
A very large sauropod dinosaur of the late Jurassic Period, having a long neck and tail and a relatively small head. See Note at brontosaurus.
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|Noun||1.||apatosaurus - huge quadrupedal herbivorous dinosaur common in North America in the late Jurassic|
sauropod, sauropod dinosaur - very large herbivorous dinosaur of the Jurassic and Cretaceous having a small head a long neck and tail and five-toed limbs; largest known land animal