defensive measure

NOUN
17 LETTERS · STARTS WITH D

defensive measure is a valid 17-letter word worth 25 points in Scrabble and 29 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
D2E1F4E1N1S1I1V4E1M3E1A1S1U1R1E1
2 + 1 + 4 + 1 + 1 + 1 + 1 + 4 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does defensive measure mean?

NOUN · 1 SENSE