I. ˈma-məth noun
Etymology: Russian mamont, mamot
Date: 1706
1. : any of a genus ( Mammuthus ) of extinct Pleistocene mammals of the elephant family distinguished from recent elephants by highly ridged molars, usually large size, very long tusks that curve upward, and well-developed body hair
2. : something immense of its kind
the company is a mammoth of the industry
II. adjective
Date: 1802
: of very great size
Synonyms: see enormous