near-infrared

adjective

near-in·​fra·​red ˌnir-ˌin-frə-ˈred How to pronounce near-infrared (audio)
-(ˌ)frä-
: of or relating to the shorter wavelengths of radiation in the infrared spectrum and especially to those between 0.7 and 2.5 micrometers

Examples of near-infrared in a Sentence

Recent Examples on the Web
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In its present form, the technology utilizes two spectrometers to perform near-infrared and mid-infrared scans of the top surfaces and undersides of leaves immediately adjacent to the fruits. New Atlas, 20 Dec. 2025 The team's observations, using the Gemini South observatory, revealed an excess of near-infrared light from the source of AT 2024wpp, something only seen before around AT 2018cow, which is not associated with normal supernovas. Robert Lea, Space.com, 19 Dec. 2025 For example, the Theragun Pro Plus offers five therapies combined into one with this full-body heated massager that features near-infrared LED light and vibration to give you 15 minutes of massage in just two minutes. Emily Peck, Wired News, 12 Dec. 2025 The brand pairs red and near-infrared light for aging concerns and blue light for breakouts. Christa Joanna Lee, Allure, 8 Dec. 2025 See All Example Sentences for near-infrared

Word History

First Known Use

1950, in the meaning defined above

Time Traveler
The first known use of near-infrared was in 1950

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Cite this Entry

“Near-infrared.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/near-infrared. Accessed 2 Jan. 2026.

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