Entomology definition of Gnathite September 8, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Gnathite Entomology definition of Gnathite: a jaw or jaw-like appendage; in the plural, the mouth parts. Entomology Gnathite definitionGnathite Entomology explanationGnathite Entomology meaningReviews & Comments