| Answer | Crossword Clue |
|---|---|
| ultrareds | ULTRARED, a part of the visible spectrum, also INFRARED |
| infrareds | INFRARED, a part of the visible spectrum, also ULTRARED |
| infrared | a part of the visible spectrum, also ULTRARED |
| ultrared | a part of the visible spectrum, also INFRARED |
| lasers | a device that utilizes the natural oscillations of atoms or molecules between energy levels for generating a beam of coherent electromagnetic radiation usually in the ultraviolet, visible, or infrared regions of the spectrum |
| RED | Part of the visible spectrum. |
| ultraviolet | the part of the spectrum beyond the visible spectrum at its violet end |
| ultraviolets | ULTRAVIOLET, the part of the spectrum beyond the visible spectrum at its violet end |
