solar still

11 LETTERS · STARTS WITH S

solar still is a valid 11-letter word worth 10 points in Scrabble and 13 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1O1L1A1R1S1T1I1L1L1

1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 =10 PTS

DOUBLE WORD → 20TRIPLE WORD → 30

MEANING

What does solar still mean?