Entomology definition of Ectotrachea September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Ectotrachea Entomology definition of Ectotrachea: the outer surface or layer of the trachea. Ectotrachea Entomology explanationEctotrachea Entomology meaningEntomology Ectotrachea definitionReviews & Comments