vapour density

NOUN
14 LETTERS · 4 SYLLABLES · STARTS WITH V

vapour density is a valid 14-letter word worth 22 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
V4A1P3O1U1R1D2E1N1S1I1T1Y4
4 + 1 + 3 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 1 + 1 + 1 + 4 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does vapour density mean?

NOUN · 1 SENSE
1

The density of a gas relative to the density of hydrogen.