单词 | nonparticulate radiation |
释义 | nonparticulate radiation (extremely rare) n WORD FAMILY nonparticulate radiation n radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge Syn|Hypo|Hyper electromagnetic radiation, electromagnetic wave actinic radiation, actinic ray electromagnetic radiation that can produce photochemical reactions beam, electron beam, raya group of nearly parallel lines of electromagnetic radiation black-body radiation, blackbody radiationthe electromagnetic radiation that would be radiated from an ideal black body; the distribution of energy in the radiated spectrum of a black body depends only on temperature and is determined by Planck's radiation law Hertzian wavean electromagnetic wave generated by oscillations in an electric circuit gamma radiation, gamma rayelectromagnetic radiation emitted during radioactive decay and having an extremely short wavelength linea single frequency (or very narrow band) of radiation in a spectrum microwavea short electromagnetic wave (longer than infrared but shorter than radio waves); used for radar and microwave ovens and for transmitting telephone, facsimile, video and data radio emission, radio radiation, radio wavean electromagnetic wave with a wavelength between 0.5 cm to 30,000 m X ray, X-radiation, X-ray, roentgen rayelectromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target cathode raya beam of electrons emitted by the cathode of an electrical discharge tube infrared, infrared emission, infrared light, infrared radiationelectromagnetic radiation with wavelengths longer than visible light but shorter than radio waves light, visible light, visible radiation(physics) electromagnetic radiation that can produce a visual sensation particle beama collimated flow of particles (atoms or electrons or molecules) sky wavea radio wave that is reflected back to earth by the ionosphere or a communications satellite; permits transmission around the curve of the earth's surface ground wavea radio wave propagated on or near the earth's surface radio signala radio wave used to transmit and receive messages carrier, carrier wavea radio wave that can be modulated in order to transmit a signal short wavea radio wave with a wavelength less than 100 meters (a frequency greater than 3 megahertz) medium wavea radio wave with a wavelength between 100 and 1000 meters (a frequency between 300 kilohertz and 3000 kilohertz) long wavea radio wave with a wavelength longer than a kilometer (a frequency below 300 kilohertz) UV, ultraviolet, ultraviolet illumination, ultraviolet light, ultraviolet radiationradiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays radiation energy that is radiated or transmitted in the form of rays or waves or particles |
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