ˌmaˌkrȯˈkēnēə noun
Usage: capitalized
Etymology: New Latin, from Greek makrauchēn long-necked (from makr- macr- + auchēn neck) + New Latin -ia
: a genus (the type of the family Macraucheniidae) of long-necked three-toed Pleistocene mammals (order Litopterna) of So. 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