| Answer | Crossword Clue |
|---|---|
| LASER | Optical maser |
| LASED | Used an optical maser |
| RAY | Laser or maser principle. |
| Answer | Crossword Clue |
|---|---|
| LASER | Optical maser |
| LASED | Used an optical maser |
| RAY | Laser or maser principle. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.