Definitions of irradiation
  1. noun
    (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
    synonyms: actinotherapy, radiation, radiation therapy, radiotherapy
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    the use of strong light to treat acne or hyperbilirubinemia of the newborn
    Curietherapy, radium therapy
    the use of radium in radiation therapy
    X-ray therapy
    the therapeutic use of X rays
    type of:
    (medicine) the act of caring for someone (as by medication or remedial training etc.)
  2. noun
    the condition of being exposed to radiation
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    type of:
    condition, status
    a state at a particular time
  3. noun
    a column of light (as from a beacon)
    synonyms: beam, beam of light, light beam, ray, ray of light, shaft, shaft of light
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    heat ray
    a ray that produces a thermal effect
    high beam
    the beam of a car's headlights that provides distant illumination
    moon ray, moon-ray, moonbeam
    a ray of moonlight
    sunbeam, sunray
    a ray of sunlight
    laser beam
    a beam of light generated by a laser
    low beam
    the beam of a car's headlights that provides illumination for a short distance
    infrared ray
    a ray of infrared radiation; produces a thermal effect (as from an infrared lamp)
    type of:
    light, visible light, visible radiation
    (physics) electromagnetic radiation that can produce a visual sensation
  4. noun
    (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
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    type of:
    generalisation, generalization, stimulus generalisation, stimulus generalization
    (psychology) transfer of a response learned to one stimulus to a similar stimulus
  5. noun
    (physiology) the spread of sensory neural impulses in the cortex
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    type of:
    spread, spreading
    process or result of distributing or extending over a wide expanse of space
  6. noun
    the apparent enlargement of a bright object when viewed against a dark background
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    type of:
    illusion, semblance
    an erroneous mental representation
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