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near-infrared Syllabification: near-in·fra·red

Entry from US English dictionary

Definition of near-infrared in English:


Pertaining to or being in the infrared spectrum that is closest to visible light; it is used for studying red dwarfs, red giants, and other celestial objects.
Example sentences
  • Photodynamic therapy consists in the activation with visible or near-infrared light of photosensitizing compound accumulated in tumor or other abnormal tissues.
  • Visible and near-infrared light cover a wavelength range of 400 nm to 700 nm and 700 nm to 2500 nm, respectively.
  • The visible and near-infrared portions of the spectra were analyzed independently using the extinction coefficients illustrated in Figures 1 and 2.
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