Scrabble Word Checker
O1P3S1O1N1I1N1
9 points

OPSONIN is validvalid

an antibody of blood serum [n OPSONINS]

46,657 of 196,601 in NWL2023·also valid in CSW24

a substance of blood serum making bacteria vulnerable to phagocytic action [n -S]

164,399 of 280,887 in CSW24·also valid in NWL2023