Entomology definition of Trichogen September 14, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Trichogen Entomology definition of Trichogen: a hair-forming hypodermal cell in caterpillars, etc. Entomology Trichogen definitionTrichogen Entomology explanationTrichogen Entomology meaningReviews & Comments