infrared

infrared
adjective
  1. (of electromagnetic radiation) having a wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves. Infrared radiation has a wavelength from about 800 nm to 1 mm, and is emitted particularly by heated objects
    (电磁辐射)红外线的
    ■(of equipment or techniques) using or concerned with this radiation
    (设备,技术)使用红外线的,涉及红外线的
    infrared cameras.
    红外线照相机。
noun
  1. [mass noun]the infrared region of the spectrum; infrared radiation
    红外区;红外线;红外辐射
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