apatosaurus Hear it!

apatosaurus definition

apato·saurus (ə pat′ə sôr′əs, ap′ət ə-)

noun

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 College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

Comments
Improve this definition.
Do you have more to add? Share your linguistic knowledge or observation.
/Register to save your comments.