Entomology definition of Post-oral September 12, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Post-oral Entomology definition of Post-oral: behind the mouth; those segments bearing mouth structures. Entomology Post-oral definitionPost-oral Entomology explanationPost-oral Entomology meaningReviews & Comments