| Noun | 1. | whiptail - any of numerous very agile and alert New World lizardsteiid, teiid lizard - tropical New World lizard with a long tail and large rectangular scales on the belly and a long tail Cnemidophorus, genus Cnemidophorus - whiptails Cnemidophorus sexlineatus, race runner, racerunner, six-lined racerunner - very swift lizard of eastern and central United States Cnemidophorus velox, plateau striped whiptail - having distinct longitudinal stripes: of Colorado Plateau from Arizona to western Colorado Chihuahuan spotted whiptail, Cnemidophorus exsanguis - having longitudinal stripes overlaid with light spots; upland lizard of United States southwest and Mexico Cnemidophorus tigris, western whiptail - active lizard having a network of dusky dark markings; of semiarid areas from Oregon and Idaho to Baja California checkered whiptail, Cnemidophorus tesselatus - markings are darker and more marked than in western whiptail; from southeastern Colorado to eastern Chihuahua |