Noun | 1. | order Isoptera - order of social insects that live in colonies, including: termites; often placed in subclass Exopterygota animal order - the order of animals class Hexapoda, class Insecta, Hexapoda, Insecta - insects; about five-sixths of all known animal species family Termitidae, Termitidae - termites family Rhinotermitidae, Rhinotermitidae - large widely distributed family of termites of temperate to tropical regions family Mastotermitidae, Mastotermitidae - primitive termites family Kalotermitidae, Kalotermitidae - primitive termites of warm regions |