homologous vaccine

18 LETTERS · STARTS WITH H

homologous vaccine is a valid 18-letter word worth 30 points in Scrabble and 37 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

H4O1M3O1L1O1G2O1U1S1V4A1C3C3I1N1E1

4 + 1 + 3 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 0 + 4 + 1 + 3 + 3 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does homologous vaccine mean?