Entomology is the study of insects. + entomologist entomologists ento·molo·gist a research entomologist. the scientific study of insects (entomologie, from entomon ). Branch of zoology dealing with the scientific study of insects, including their taxonomy, morphology, physiology, and ecology. Applied aspects of entomology, such as the harmful and beneficial impact of insects on humans, are also studied
= the scientific study of the insects and their biology One specialized approach is Medical entomology, dealing with species transmitting pathogens for humans