Entomology definition of Head vesicle September 9, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Head vesicle Entomology definition of Head vesicle: in Diptera, = ptilinum, q.v. Entomology Head vesicle definitionHead vesicle Entomology explanationHead vesicle Entomology meaningReviews & Comments