Yes, opsonin is a Scrabble word!
...and is worth 9 points in Scrabble, and 12 points in Words with Friends
opsonin
Noun
1. An antibody in blood serum that attaches to invading microorganisms and other antigens to make them more susceptible to the action of phagocytes
What Scrabble words can I make with the letters in opsonin?
6 Letter Words
5 Letter Words
4 Letter Words
Sponsored Links
3 Letter Words
2 Letter Words