insecticide

NOUN /ɪn'sɛktɪ,saɪd/
11 LETTERS · 4 SYLLABLES · STARTS WITH I

insecticide is a valid 11-letter word worth 16 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
I1N1S1E1C3T1I1C3I1D2E1
1 + 1 + 1 + 1 + 3 + 1 + 1 + 3 + 1 + 2 + 1 =16 PTS
DOUBLE WORD → 32TRIPLE WORD → 48
MEANING

What does insecticide mean?