radiation : Idioms & Phrases

Index

acoustic radiation pressure

  • noun (acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave
WordNet

actinic radiation

  • noun electromagnetic radiation that can produce photochemical reactions
    actinic ray.
WordNet

adaptive radiation

  • noun the development of many different forms from an originally homogeneous group of organisms as they fill different ecological niches
WordNet

alpha radiation

  • noun the radiation of alpha particles during radioactive decay
    alpha ray.
WordNet

background radiation

  • noun radiation coming from sources other than those being observed
WordNet

beta radiation

  • noun radiation of beta particles during radioactive decay
    beta radiation; beta ray.
WordNet

black-body radiation

  • noun the 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
    black-body radiation.
WordNet

blackbody radiation

  • noun the 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
    black-body radiation.
WordNet

corpuscular radiation

  • noun a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)
    corpuscular radiation.
WordNet

corpuscular-radiation pressure

  • noun the minute pressure exerted on a surface normal to the direction of propagation of a wave
    corpuscular-radiation pressure.
WordNet

cosmic background radiation

  • noun (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin
    CMB; cosmic background radiation; CBR; cosmic microwave background; CMBR.
WordNet

cosmic microwave background radiation

  • noun (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin
    CMB; cosmic background radiation; CBR; cosmic microwave background; CMBR.
WordNet

cosmic radiation

  • noun radiation coming from outside the solar system
WordNet

electromagnetic radiation

  • noun radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
    electromagnetic wave; electromagnetic radiation.
WordNet

electron radiation

  • noun radiation of beta particles during radioactive decay
    beta radiation; beta ray.
WordNet

gamma radiation

  • noun electromagnetic radiation emitted during radioactive decay and having an extremely short wavelength
    gamma ray.
WordNet

infrared radiation

  • noun electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves
    infrared light; infrared emission; infrared.
WordNet

ionizing radiation

  • noun high-energy radiation capable of producing ionization in substances through which it passes
WordNet

neutron radiation

  • noun radiation of neutrons (as by a neutron bomb)
WordNet

nonparticulate radiation

  • noun radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge
    electromagnetic wave; electromagnetic radiation.
WordNet

optic radiation

  • noun a nerve pathway from the lateral geniculate body to the visual cortex
    radiatio optica.
WordNet

particulate radiation

  • noun a stream of atomic or subatomic particles that may be charged positively (e.g. alpha particles) or negatively (e.g. beta particles) or not at all (e.g. neutrons)
    corpuscular radiation.
WordNet

planck's radiation law

  • noun (physics) an equation that expresses the distribution of energy in the radiated spectrum of an ideal black body
WordNet

radiation diagram

  • noun graphical representation (in polar or Cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle
    pattern; radiation diagram.
WordNet

radiation field

  • noun a field that represents the energy lost from the radiator to space
WordNet

radiation pattern

  • noun graphical representation (in polar or Cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle
    pattern; radiation diagram.
WordNet

radiation pressure

  • noun the minute pressure exerted on a surface normal to the direction of propagation of a wave
    corpuscular-radiation pressure.
WordNet

radiation pyrometer

  • noun a pyrometer for estimating the temperature of distant sources of heat; radiation is focussed on a thermojunction connected in circuit with a galvanometer
WordNet

radiation sickness

  • noun syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours
    radiation; radiation sickness.
    • he was suffering from radiation
WordNet

radiation syndrome

  • noun syndrome resulting from exposure to ionizing radiation (e.g., exposure to radioactive chemicals or to nuclear explosions); low doses cause diarrhea and nausea and vomiting and sometimes loss of hair; greater exposure can cause sterility and cataracts and some forms of cancer and other diseases; severe exposure can cause death within hours
    radiation; radiation sickness.
    • he was suffering from radiation
WordNet

radiation therapy

  • noun (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
    radiotherapy; irradiation; radiation; actinotherapy.
WordNet

radio radiation

  • noun an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m
    radio wave; radio emission.
WordNet

solar radiation

  • noun radiation from the sun
WordNet

ultraviolet radiation

  • noun radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays
    ultraviolet illumination; ultraviolet; UV; ultraviolet light.
WordNet

visible radiation

  • noun (physics) electromagnetic radiation that can produce a visual sensation
    light; visible light.
    • the light was filtered through a soft glass window
WordNet

x-radiation

  • noun electromagnetic radiation of short wavelength produced when high-speed electrons strike a solid target
    X ray; X-ray; roentgen ray.
  • noun obtaining images by the use of X rays
    X-raying.
WordNet