mastodont
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mas·to·don
(măs′tə-dŏn′) also mas·to·dont (-dŏnt′)n.
Any of several very large, extinct proboscidian mammals of the family Mammutidae of the Miocene, Pliocene, and Pleistocene Epochs, resembling elephants but having molar teeth of a different structure.
[New Latin Mastodōn, genus name : Greek mastos, breast, nipple + Greek odōn, tooth (from the nipple-shaped protrusions on the crowns of its molars); see dent- in Indo-European roots.]
mas′to·don′ic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Noun | 1. | mastodont - extinct elephant-like mammal that flourished worldwide from Miocene through Pleistocene times; differ from mammoths in the form of the molar teeth proboscidean, proboscidian - massive herbivorous mammals having tusks and a long trunk American mastodon, American mastodont, Mammut americanum - mastodon of North America; in some classifications considered a mammoth rather than a mastodon |
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