partial pressure

16 LETTERS · STARTS WITH P

partial pressure is a valid 16-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3A1R1T1I1A1L1P3R1E1S1S1U1R1E1

3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does partial pressure mean?