noun

• (US, Canada) The American elk (Cervus canadensis). It was formerly considered to be in the same species as the European red deer, which it somewhat exceeds in size.
  "Of deer there are in North America perhaps eight species : the black-tailed deer of the Pacific coast ; the mule-deer, and the white-tailed deer, of the Upper Missouri region and westward; the common deer of the United States east of the Missouri ; the wapiti of the northern and northwestern portions of the United States; one or two species of reindeer ; and the moose of the northern portion of the continent. […] Next to the moose, the wapiti or American elk (Cervus Canadensis) is the largest deer in North America."