| Answer | Crossword Clue |
|---|---|
| achromatopsia | total colour-blindness, where only white, grey and black are visible |
| Answer | Crossword Clue |
|---|---|
| achromatopsia | total colour-blindness, where only white, grey and black are visible |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.