| Answer | Crossword Clue |
|---|---|
| lacmus | a substance that changes colour with acidity, also LITMUS |
| Answer | Crossword Clue |
|---|---|
| lacmus | a substance that changes colour with acidity, also LITMUS |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.