addition logarithm

18 LETTERS · STARTS WITH A

addition logarithm is a valid 18-letter word worth 25 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

A1D2D2I1T1I1O1N1L1O1G2A1R1I1T1H4M3

1 + 2 + 2 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 4 + 3 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does addition logarithm mean?