gridiron-tailed lizard gri·di·ron·tailedlizard uncommon noun 1. swift lizard with long black-banded tail and long legs; of deserts of United States and Mexico Synonymszebra-tailed lizardgridiron-tailed lizardCallisaurus draconoides Related words Broader terms iguanid Parts Callisaurus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.