Entomology definition of Branchial September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Branchial Entomology definition of Branchial: relating to the gills or branchiae. Branchial Entomology explanationBranchial Entomology meaningEntomology Branchial definitionReviews & Comments