acid-base indicator
noun1
Chemistry, Natural sciences, Physical sciences A substance that shows the acidity or alkalinity of a solution by its colour.
- Synonyms
- pH indicator
- Related terms
- bromocresol purple, bromophenol blue, bromothymol blue, congo red, indigo carmine, litmus, methyl orange, methyl violet, phenolphthalein, phenol red, thymol blue, thymolphthalein