• Webster's Revised Unabridged Dictionary
    • n Diprotodon (Paleon) An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix.
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Century Dictionary and Cyclopedia
    • n diprotodon A genus of extinct marsupial quadrupeds, surpassing the rhinoceros in size. They had 3 incisors on each side of the upper and 1 on each side of the lower jaw; no canines; 1 premolar and 4 molars on each side of each jaw; the median upper incisors large and scalpriform; the molars transversely ridged, as in the kangaroo, but without the longitudinal connecting ridge; and the hind limbs less disproportionately enlarged. The dentition of this genus gives name to the diprotodont pattern of primitive herbivorous marsupials. D. australis is a species found in the Post-tertiary of Australia.
    • n diprotodon [lowercase] An animal of this genus.
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Webster's Revised Unabridged Dictionary
Gr. di- = di`s- twice + first + 'odoy`s 'odo`ntos, tooth


In literature:

Those of the bulk of the mastodons, megatheria, glyptodons, and diprotodons, are uniparous.
"The Romance of Natural History, Second Series" by Philip Henry Gosse
They were remains of diprotodons and nototheriums, gigantic marsupials now extinct.
"The Jenolan Caves" by Samuel Cook

In news:

Paleontologists have unearthed a nearly complete skeleton of a Diprotodon, a fearsome three-ton wombat that rampaged across Australia some 2.5 million years ago until the arrival of the first humans.