| Answer | Crossword Clue |
|---|---|
| focometers | FOCOMETER, an instrument for measuring the focal length of a lens also FOCIMETER |
| Answer | Crossword Clue |
|---|---|
| focometers | FOCOMETER, an instrument for measuring the focal length of a lens also FOCIMETER |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.