Entomology definition of Opalescent September 12, 2014 Raj Entomology Dictionary 0 Please Like Us!!! DesiGoogly.com > Education News > Entomology Dictionary > Entomology definition of Opalescent Entomology definition of Opalescent: with a bluish white lustre, as in opals. Entomology Opalescent definitionOpalescent Entomology explanationOpalescent Entomology meaningReviews & Comments