Entomology definition of Semen September 13, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Semen Entomology definition of Semen: the fluid secreted in the testes, containing the spermatozoa. Entomology Semen definitionSemen Entomology explanationSemen Entomology meaningReviews & Comments