INFRARED

infrared

(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”

infrared, infrared frequency

(noun) the infrared region of the electromagnetic spectrum; electromagnetic wave frequencies below the visible range; “they could sense radiation in the infrared”

infrared, infrared light, infrared radiation, infrared emission

(noun) electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves

Source: WordNet® 3.1


Etymology

Noun

infrared (countable and uncountable, plural infrareds)

electromagnetic radiation of a wavelength longer than visible light, but shorter than microwave radiation, having a wavelength between 700 nm and 1 mm

Hypernyms

• electromagnetic radiation

Adjective

infrared (not comparable)

Having the wavelength in the infrared.

In the infrared spectrum.

Hyponyms

• mid-infrared

• near-infrared

Source: Wiktionary


In`fra-red", a. [Infra- + red.] (Physics)

Definition: Lying outside the visible spectrum at its red end; -- said of rays less refrangible than the extreme red rays.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

3 June 2025

OWNER

(noun) (law) someone who owns (is legal possessor of) a business; “he is the owner of a chain of restaurants”


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Coffee Trivia

International Coffee Day (September 29) is an occasion to promote and celebrate coffee as a beverage, with events occurring in places across the world. A day to promote fair trade coffee and raise awareness for the coffee growers’ plight. Other countries celebrate this event on October 1.

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