| Answer | Crossword Clue |
|---|---|
| orthochromatism | the state of being orthochromatic, of photographic film, sensitive to all colours except red |
| Answer | Crossword Clue |
|---|---|
| orthochromatism | the state of being orthochromatic, of photographic film, sensitive to all colours except red |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.