Definition of near-infrared in English:


Syllabification: near-in·fra·red


  • 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.
    More 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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Word of the day coloratura
Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody