theory of indicators

NOUN
20 LETTERS · STARTS WITH T

theory of indicators is a valid 20-letter word worth 30 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
T1H4E1O1R1Y4O1F4I1N1D2I1C3A1T1O1R1S1
1 + 4 + 1 + 1 + 1 + 4 + 0 + 1 + 4 + 0 + 1 + 1 + 2 + 1 + 3 + 1 + 1 + 1 + 1 + 1 =30 PTS
DOUBLE WORD → 60TRIPLE WORD → 90
MEANING

What does theory of indicators mean?

NOUN · 1 SENSE
1

(chemistry) the theory that all indicators are either weak acids or weak bases in which the color of the ionized form is different from the color before dissociation.