1. (noun) infrared, infrared frequency
the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range
Synonyms: infrared emission, infrared, infrared light, infrared radiation, infrared frequency Antonyms: seeable, visible
2. (adj) infrared, infrared light, infrared radiation, infrared emission
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
Synonyms: infrared emission, infrared, infrared light, infrared radiation, infrared frequency Antonyms: seeable, visible
3. (adj) infrared
having or employing wavelengths longer than light but shorter than radio waves; lying outside the visible spectrum at its red end
Antonyms: visible, seeable
|