Entomology definition of Sub-frontal September 13, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Sub-frontal Entomology definition of Sub-frontal: close to the front; immediately behind the front margin. Entomology Sub-frontal definitionSub-frontal Entomology explanationSub-frontal Entomology meaningReviews & Comments