Word Meaning

litmus definition and meaning

n. A dyestuff extracted from certain lichens (Roccella tinctoria, Lecanora tartarea, etc.), as a blue amorphous mass which consists of a compound of the alkaline carbonates with certain coloring matters related to orcin and orcein.

Crossword clues for litmus

- Acid-base indicator
- Acidity paper
- In general, it must be used to test acid