any mammal of the order Chiroptera, comprising the bats.

Origin of chiropter

< New Latin Chiroptera, equivalent to chiro- chiro- + Greek -ptera, neuter plural of -pteros -pterous; so named because the wing membranes are supported by the extended digits of the forelimbs; cf. -pter Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019