Entomology definition of Basi-proboscis September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Basi-proboscis Entomology definition of Basi-proboscis: basal third of the flexed proboscis of muscid flies. Basi-proboscis Entomology explanationBasi-proboscis Entomology meaningEntomology Basi-proboscis definitionReviews & Comments