Real Dictionary

lynx
countable noun: A lynx is a wild animal similar to a large cat.

lynx in American English
any of a genus (Lynx) of wildcats found throughout the Northern Hemisphere and characterized by a ruff on each side of the face, relatively long legs, a short tail, long, usually tufted ears, and keen vision, as the bobcat or Canada lynx of North America
noun: any of several wildcats of the genus Lynx (or Felis), having long limbs, a short tail, and usually tufted ears, esp. L. lynx (Canada lynx), of Canada and the northern U.S., having grayish-brown fur marked with white

lynx in British English
noun: a faint constellation in the N hemisphere lying between Ursa Major and Cancer
noun: a feline mammal, Felis lynx (or canadensis), of Europe and North America, with grey-brown mottled fur, tufted ears, and a short tail