ring formula

12 LETTERS · STARTS WITH R

ring formula is a valid 12-letter word worth 17 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1I1N1G2F4O1R1M3U1L1A1

1 + 1 + 1 + 2 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 =17 PTS

DOUBLE WORD → 34TRIPLE WORD → 51

MEANING

What does ring formula mean?