great solomon's-seal

NOUN
20 LETTERS · STARTS WITH G

great solomon's-seal is a valid 20-letter word worth 20 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
G2R1E1A1T1S1O1L1O1M3O1N1'0S1-0S1E1A1L1
2 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 0 + 1 + 1 + 1 + 1 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does great solomon's-seal mean?

NOUN · 1 SENSE
1

North American perennial herb with smooth foliage and drooping tubular greenish flowers.