infrared
-
(s) having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
- infrared radiation
- infrared photography
Nouns
-
(n) the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
- they could sense radiation in the infrared
- (n) electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves infrared emission, infrared light, infrared radiation,