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near infrared (uncountable)

  1. (physics, often in compounds) Infrared light closest in wavelength to visible light, from .7–1.4 µm.
    • 1984, David E. Honigs, Improvements of the Near-infrared Diffuse-reflectance Technique, Indiana University, page 19:
      Because the near infrared is not as well suited to qualitative determinations as is the mid infrared, most modern NIRA instruments have centered on quantitative applications.

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