| INFRARED | Portion of the electromagnetic spectrum that extends from the long wavelength, or red, end of the visible-light range to the microwave range. |
| RADIOWAVE | Wave from the portion of the electromagnetic spectrum at lower frequencies than microwaves. The wavelengths of these waves range from thousands of metres to 30 cm. (5,4) |
| AFFAIR | Julianne Moore drama, The End of the ... (6) |
| AMBAND | Radio spectrum that ranges from 535 to 1705 KHz |
| POLYCHROMATIC | Of a number of wavelengths or frequencies (physics) (13) |
| TSUNAMIS | Waves with long wavelengths? |
| REDS | Shades with long wavelengths |
| STEERED | Directed the vehicle with red end (7) |
| JUDASTREE | Plant with just a red end to foliage, shaken (5,4) |
| LASER | A device that generates intense beam of radiation in the infrared, visible, or ultraviolet region of the electromagnetic spectrum |
| ICBM | Electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy's use of electronic warfare. |
| ECCM | Electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy's use of electronic warfare. |
| RADIOWAVES | They're at the low end of the electromagnetic spectrum |
| ECM | Electronic warfare undertaken to prevent or reduce an enemy's effective use of the electromagnetic spectrum. |
| SKEG | A brace that extends from the rear of the keel to support the rudderpost. |
| ULTRAVIOLET | Part of the electromagnetic spectrum (11) |
| HUMERUS | The bone that extends from the shoulder to the elbow (7) |
| ATMOSPHERE | Gas and aerosol envelope that extends from the ocean, land, and ice-covered surface of a planet outward into space. (10) |
| SOUTHDOWNS | A range of chalk hills that extends from the Itchen Valley in Hampshire to Beachy Head in East Sussex |
| ANGORA | Yarn or fabric made from the long hair of a species of goat or rabbit (6) |
