Entomology definition of Blastem September 7, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Blastem Entomology definition of Blastem: a nucleated protoplasmic layer preceding the blastoderm. Blastem Entomology explanationBlastem Entomology meaningEntomology Blastem definitionReviews & Comments