viridity

NOUN /və'rɪdɪti/
8 LETTERS · 4 SYLLABLES · STARTS WITH V

viridity is a valid 8-letter word worth 15 points in Scrabble and 15 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
V4I1R1I1D2I1T1Y4
4 + 1 + 1 + 1 + 2 + 1 + 1 + 4 =15 PTS
DOUBLE WORD → 30TRIPLE WORD → 45
MEANING

What does viridity mean?