Definition of "apatosaur" []

• A very large herbivorous dinosaur of the genus Apatosaurus (formerly Brontosaurus) of the late Jurassic period, having a long neck and tail and a relatively small head. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Allosaurus bones have been found in the quarry, suggesting the apatosaur was the main meal of the top predator of the late Jurassic not long before the plant-eaters bone, and a bit of skin, were covered up by mud."
• "And in the far distance, a giant apatosaur stood above the trees, the tiny head swiveling on the long neck."
• "Bells Ankylo Torso: 3000 Bells Ankylo Tail: 2500 Bells Apatosaur 'The apatosaur was once called a brontosaur, I'll have you know."