worm lizard Syllabification: (worm liz·ard)Definition of worm lizard noun 1a subterranean burrowing reptile that resembles an earthworm, being blind, apparently segmented, and typically without limbs. Suborder Amphisbaenia, order Squamata: four families and numerous species 2a legless lizard. worm lizard in other Oxford dictionaries Definition of worm lizard in the British & World English dictionary