Noun
-
electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
- infrared light - infrared radiation - infrared emission -
the infrared region of the electromagnetic spectrum
electromagnetic wave frequencies below the visible range
"they could sense radiation in the infrared"
- infrared frequency
Adjective
-
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"