double stem

11 LETTERS · STARTS WITH D

double stem is a valid 11-letter word worth 15 points in Scrabble and 19 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

D2O1U1B3L1E1S1T1E1M3

2 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 1 + 3 =15 PTS

DOUBLE WORD → 30TRIPLE WORD → 45

MEANING

What does double stem mean?