Entomology definition of Dagger mark September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Dagger mark Entomology definition of Dagger mark: a marking in the form of a Greek Psi Y . Dagger mark Entomology explanationDagger mark Entomology meaningEntomology Dagger mark definitionReviews & Comments