expansion valve

15 LETTERS · STARTS WITH E

expansion valve is a valid 15-letter word worth 29 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

E1X8P3A1N1S1I1O1N1V4A1L1V4E1

1 + 8 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 4 + 1 =29 PTS

DOUBLE WORD → 58TRIPLE WORD → 87

MEANING

What does expansion valve mean?