near-infrared radiation

American

[neer-in-fruh-red rey-dee-ey-shuhn] / ˈnɪərˌɪn frəˈrɛd reɪ diˌeɪ ʃən /

noun

the shorter wavelengths of electromagnetic radiation in the infrared region of the spectrum, extending from about 0.75 to 2.5 micrometers, usually radiation reflected from plant materials.

Etymology

Origin of near-infrared radiation

First recorded in 1940–45

Example Sentences

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near-infrared radiation

Four hours later, they applied near-infrared radiation to the mice to activate the photo-oxidants to attack the cancer cells.

From Science Daily ● Sep. 20, 2023

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023