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
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
• electromagnetic radiation
infrared (not comparable)
Having the wavelength in the infrared.
In the infrared spectrum.
• 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
1 April 2025
(adverb) at the present or from now on; usually used with a negative; “Alice doesn’t live here anymore”; “the children promised not to quarrel any more”
According to Guinness World Records, on 25 September 2016, the Birla Institute of Management Technology (India) in Uttar Pradesh, India, constructed the largest coffee cups pyramid consisting of 23,821 cups. They used paper takeaway coffee cups to build the pyramid.
