saint elmo's light

NOUN
18 LETTERS · STARTS WITH S

saint elmo's light is a valid 18-letter word worth 21 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
S1A1I1N1T1E1L1M3O1'0S1L1I1G2H4T1
1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 1 + 0 + 1 + 0 + 1 + 1 + 2 + 4 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does saint elmo's light mean?

NOUN · 1 SENSE