reduction formula

17 LETTERS · STARTS WITH R

reduction formula is a valid 17-letter word worth 24 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1E1D2U1C3T1I1O1N1F4O1R1M3U1L1A1

1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does reduction formula mean?