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Definition of: mastodon
(mas′tə·don) noun
A primitive elephantlike mammal (order Proboscidea), distinguished from elephants and mammoths chiefly by its molar teeth; especially, the extinct, shaggy–haired Mammut americanus once common in North America. [<NL <MAST- + Gk. odous, odontos tooth; from the nipple–shaped projections on its teeth]
(About 9 feet high at the shoulder)
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