Definition of Macrauchenia
: a genus (the type of the family Macraucheniidae) of long-necked three-toed Pleistocene mammals (order Litopterna) of South America that had a complete dentition of 44 teeth without a diastema and with pitted incisors like those of the horse, the external nostrils far back, cervical vertebrae resembling those of camels, and other characters suggesting rhinoceroses
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Origin and Etymology of macrauchenia
New Latin, from Greek makrauchēn long-necked (from makr- macr- + auchēn neck) + New Latin -ia
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