lizard

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

• noun Any of numerous squamate reptiles often classified in the suborder Lacertilia, characteristically having a scaly elongated body with a tapering tail, four legs, movable eyelids, and external ear openings.
• noun Leather made from the skin of one of these reptiles.

from The Century Dictionary.

• noun The thorn-tailed lizard, Uromastix acanthinurus.
• noun A scaly four-legged reptile without a shell; a squamate quadruped saurian; a saurian or lacertilian.
• noun Any member of the old order Sauria or modern order Lacertilia.
• noun Nautical, a piece of rope with a thimble or bull's-eye spliced into one or both ends, used in a vessel as a leader for ropes.
• noun [capitalized] A certain small constellation. See Lacerta, 2.
• noun A crotch of timber or a forked limb used in place of a sled for hauling stone: a form of stone-boat.
• noun In heraldry, a beast like a wildcat, usually represented as spotted: a rare bearing.

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

• noun (Zoöl.) Any one of the numerous species of reptiles belonging to the order Lacertilia; sometimes, also applied to reptiles of other orders, as the Hatteria.
• noun (Naut.) A piece of rope with thimble or block spliced into one or both of the ends.
• noun A piece of timber with a forked end, used in dragging a heavy stone, a log, or the like, from a field.
• noun (Zoöl.) the garter snake (Eutænia sirtalis).
• noun (Min.) a kind of serpentine from near Lizard Point, Cornwall, England, -- used for ornamental purposes.

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

• noun Any reptile of the order Squamata, usually having four legs, external ear openings, movable eyelids and a long slender body and tail.
• noun Lizard skin, the skin of these reptiles.
• noun colloquial An unctuous person.
• noun colloquial A coward.

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

• noun relatively long-bodied reptile with usually two pairs of legs and a tapering tail
• noun a man who idles about in the lounges of hotels and bars in search of women who would support him