natural impulse

15 LETTERS · STARTS WITH N

natural impulse is a valid 15-letter word worth 18 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

N1A1T1U1R1A1L1I1M3P3U1L1S1E1

1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 3 + 3 + 1 + 1 + 1 + 1 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does natural impulse mean?