Test for Acidity, Alkalinity
This page is the CodyCross answer for the clue below from Games, Group 954, Puzzle 4 (Painting Miniatures).
Question
Test for Acidity, Alkalinity
Answer
LITMUS
Word Meaning:
LITMUS — (uncountable) A dyestuff extracted from certain lichens, that changes color when exposed to pH levels greater than or less than certain critical levels.
Definitions from Wiktionary.