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near-infrared radiation
[ neer-in-fruh-red rey-dee-ey-shuhn ]
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.
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Word History and Origins
Origin of near-infrared radiation1
First recorded in 1940–45
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