Maltese cat

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

• noun A short-haired domestic cat having a silky, bluish-gray coat, especially a Russian blue.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A short-haired bluish-gray breed of the domestic cat.

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

• noun Any cat of indeterminate breed, with primarily gray or blue fur.

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

• noun a term applied indiscriminately in the United States to any short-haired bluish-grey cat