Entomology definition of Decumbent September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Decumbent Entomology definition of Decumbent: bending down at tip from an upright base. Decumbent Entomology explanationDecumbent Entomology meaningEntomology Decumbent definitionReviews & Comments