Opsonin is a 7 letter English word. It's valid Scrabble word worth 9 points. It's valid Words with friends word worth 12 points.
You can make 85 anagrams from letters in opsonin (innoops).
1900-05; Latin opsōn(ium) victuals (Greek opsōnía, derivative of opsōneîn to buy provisions) + -in2
The "opsonin," or "relish," is something exuded into or produced in the blood fluid when the attacking microbe arrives.
opsonin is what you butter the disease germs with to make your white blood corpuscles eat them.
In the case of diphtheria, the antitoxin appears to be more efficacious than an opsonin.