| Answer | Crossword Clue |
|---|---|
| lacmus | a substance that changes colour with acidity, also LITMUS |
| lacmuses | LACMUS, a substance that changes colour with acidity, also LITMUS |
| litmuses | LITMUS, a substance that changes colour with acidity, also LACMUS |
| litmus | a substance that changes colour with acidity, also LACMUS |
| indicator | A compound that changes color at a specific pH value or in the presence of a particular substance and can be used to monitor acidity, alkalinity, or the progress of a reaction |
| indicators | A compound that changes color at a specific pH value or in the presence of a particular substance and can be used to monitor acidity, alkalinity, or the progress of a reaction |
