antibacterial drug

NOUN
18 LETTERS · STARTS WITH A

antibacterial drug is a valid 18-letter word worth 23 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1N1T1I1B3A1C3T1E1R1I1A1L1D2R1U1G2
1 + 1 + 1 + 1 + 3 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 2 =23 PTS
DOUBLE WORD → 46TRIPLE WORD → 69
MEANING

What does antibacterial drug mean?