Adjective infrared has 1 sense
- infrared - 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"
Antonyms: visible, seeable (indirect, via invisible)
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Noun infrared has 2 senses
- infrared, infrared frequency - the infrared part of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; "they could sense radiation in the infrared"
--1 is a kind of frequency, frequence, oftenness
--1 is a part of infrared spectrum
- infrared, infrared light, infrared radiation, infrared emission - electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
--2 is a kind of actinic radiation, actinic ray
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