snow leopard

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A large wild cat (Panthera uncia syn. Uncia uncia) of the highlands of Central and South Asia, having long, thick, whitish-gray fur with dark markings like those of a leopard.

from The Century Dictionary.

• noun The ounce, Felis uncia or irbis. See cut under ounce.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun a large feline mammal, Uncia uncia, native to mountain ranges of central Asia

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun large feline of upland central Asia having long thick whitish fur