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  1. radiation

    • IPA[ˌrādēˈāSH(ə)n]

    美式

    • n.
      the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.;the energy transmitted by radiation, as heat, light, electricity, etc.
    • noun: radiation, plural noun: radiations

    • 釋義
    • 相關詞

    名詞

    • 1. the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles which cause ionization.
    • the energy transmitted by radiation, as heat, light, electricity, etc. background radiation the radiation dose
    • 2. divergence out from a central point, in particular evolution from an ancestral animal or plant group into a variety of new forms evolution is a process of radiation not progression
    • n.
      treatment with or exposure to X-rays.

    Oxford American Dictionary

    • n.
      radiation consisting of particles, X-rays, or gamma rays with sufficient energy to cause ...

    Oxford Dictionary

    • n.
      electromagnetic radiation emitted by particles moving in a medium at speeds faster than that of ...

    Oxford Dictionary

    • n.
      the treatment of disease, especially cancer, using X-rays or similar forms of radiation.

    Oxford American Dictionary

    • n.
      gamma rays.

    Oxford American Dictionary

    • n.
      the branch of chemistry concerned with the effects of radiation on matter.

    Oxford Dictionary

    • n.
      a region surrounding a planet where charged particles accumulate under the influence of the ...

    Oxford American Dictionary

    • n.
      a region surrounding a planet where charged particles accumulate under the influence of the ...

    Oxford Dictionary

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    • IPA[reɪdɪˈeɪʃ(ə)n]

    英式

    • n.
      the emission of energy as electromagnetic waves or as moving subatomic particles, especially ...

    Oxford Dictionary