lesser anteater les·se·ran·teater uncommon noun 1. small toothless anteater with prehensile tale and four-clawed forelimbs; of tropical South America and Central America Synonymstamanduatamandulesser anteaterTamandua tetradactyla Related words Broader terms anteater Parts genus Tamandua WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.