Entomology definition of Isoptera: equal winged: an ordinal term for insects
with four, similar, net-veined wings; mouth mandibulate; thoracic
rings similar, loosely jointed metamorphosis incomplete: the
Termitidae. {Scanner’s note: In modern nomenclature the
Isoptera constitute the order of all termites; the Termitidae are
just one family within the Isoptera.}