Any species of the extinct genus Mammuthus, of large, usually hairy, elephant-like mammals with long curved tusks and an inclined back, which became extinct with the last retreat of ice age glaciers during the late Pleistocene period, and are known from fossils, frozen carcasses, and Paleolithic cave paintings found in North America and Eurasia.
User Defined Definitions
"any of numerous extinct elephants widely distributed in the Pleistocene; extremely large with hairy coats and long upcurved tusks"
"so exceedingly large or extensive as to suggest a giant or mammoth"