precision scale

15 LETTERS · STARTS WITH P

precision scale is a valid 15-letter word worth 20 points in Scrabble and 25 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3R1E1C3I1S1I1O1N1S1C3A1L1E1

3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 3 + 1 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does precision scale mean?