[n] the branch of zoology that studies insects
Misc. Definitions
\En`to*mol"o*gy\, n.; pl. {Entomologies}. [Gr. 'e`ntomon insect (so called because nearly cut in two, fr. 'e`ntomos cut in; 'en in + te`mnein to cut) + -logy: cf. F. entomologie. See {In}, and {Tome}, and cf. {Insect}.]
1. That part of zo["o]logy which treats of insects.
2. A treatise on the science of entomology.