friction ring

13 LETTERS · STARTS WITH F

friction ring is a valid 13-letter word worth 18 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4R1I1C3T1I1O1N1R1I1N1G2

4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 2 =18 PTS

DOUBLE WORD → 36TRIPLE WORD → 54

MEANING

What does friction ring mean?