pressure indicator

18 LETTERS · STARTS WITH P

pressure indicator is a valid 18-letter word worth 22 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3R1E1S1S1U1R1E1I1N1D2I1C3A1T1O1R1

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does pressure indicator mean?