Entomology definition of Dioptrate September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Dioptrate Entomology definition of Dioptrate: an ocellate spot with the pupil divided by a transverse line. Dioptrate Entomology explanationDioptrate Entomology meaningEntomology Dioptrate definitionReviews & Comments