stegodon
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steg·o·don
(stĕg′ə-dŏn′)n.
Any of various extinct proboscidean mammals of the genus Stegodon of the Pliocene to the Pleistocene Epochs, having long straight tusks.
[New Latin Stegodōn, genus name : Greek stegos, roof (from stegein, to cover; see (s)teg- in Indo-European roots) + -odon (so called because of the distinctive ridges on its molars).]
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.
stegodon
(ˈstɛɡəˌdɒn) orstegodont
n
(Palaeontology) any proboscidean mammal of the genus Stegodon, of Pliocene to Pleistocene times, similar to the mastodons
[C19: New Latin (literally: ridge-toothed), from Greek stegos roof, from stegein to cover + odōn tooth]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014