racerunnerEnglishOxford Dictionary of Englishracerunner /ˈreɪsrʌnə / ▸ noun any of a number of fast-moving active lizards with longitudinal markings and a pointed snout. ▪ an American lizard (genus Cnemidophorus, family Teiidae). ▪ desert racerunneran East European lizard (Eremias arguta, family Lacertidae).