Entomology definition of Labial September 9, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Labial Entomology definition of Labial: referring, pertaining or belonging to the labium. Entomology Labial definitionLabial Entomology explanationLabial Entomology meaningReviews & Comments