Entomology definition of Encephalon -um September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Encephalon -um Entomology definition of Encephalon -um: the brain, or that part of the head containing it. Encephalon -um Entomology explanationEncephalon -um Entomology meaningEntomology Encephalon -um definitionReviews & Comments