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

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Next, the researchers studied it using the X-shooter spectrograph on the Very Large Telescope, which can capture different wavelengths of light emitted by an object ranging from ultraviolet to near-infrared. Ashley Strickland, CNN Money, 2 Oct. 2025 Each can see 60 miles away on a clear day, and with near-infrared technology, gaze out 120 miles on a clear night. Paul Rogers, Boston Herald, 23 Sep. 2025 New tools offer new insights Many researchers now use a more child-friendly neuroimaging machine called functional near-infrared spectroscopy, which involves placing sensors on a child’s head – typically in the form of a lightweight cap – to track their brain function. Aaron Buss, The Conversation, 19 Sep. 2025 The James Webb Space Telescope then observed the interstellar object Aug. 6 in near-infrared light, followed by the newer SPHEREx telescope from Aug. 7-Aug. 15, to get a better idea of its physical properties and chemical makeup. Eric Lagatta, USA Today, 5 Sep. 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 10 Oct. 2025.

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