Definition of irradiation

ir`ra`di`a´tion   Pronunciation: ĭr`rā`dĭ`ā´shŭn
n.1.
1.Act of irradiating, or state of being irradiated; as, irradiation of foods with X-rays can preserve their freshness by killing the bacteria that cause spoilage .
2.Illumination; irradiance; brilliancy.
3.Fig.: Mental light or illumination.
4.(Opt.) The apparent enlargement of a bright object seen upon a dark ground, due to the fact that the portions of the retina around the image are stimulated by the intense light; as when a dark spot on a white ground appears smaller, or a white spot on a dark ground larger, than it really is, esp. when a little out of focus.


Related Words

X-ray dosimetry, X-ray therapy, anhydration, arc lighting, black and white, blast-freezing, bottling, brining, canning, chiaroscuro, cobalt therapy, contrast, corning, curietherapy, curing, decorative lighting, dehydration, desiccation, direct lighting, dry-curing, drying, electric lighting, emanation, embalming, enlightenment, evaporation, festoon lighting, floodlighting, fluorescent lighting, freeze-drying, freezing, fuming, gaslighting, glow lighting, highlight, highlights, illumination, incandescent lighting, indirect lighting, interstitial irradiation therapy, irradiance, irradiancy, irradiation therapy, isotope therapy, jerking, light, light and shade, light source, lighting, luminous energy, marination, mummification, overhead lighting, photosensitivity, pickling, potting, quick-freezing, radiance, radiancy, radiant energy, radiation, radiation therapy, radiotherapeutics, radiotherapy, radium therapy, radiumization, ray therapy, refrigeration, roentgen ray therapy, roentgenization, roentgenometry, roentgenotherapy, roentgentherapy, salting, seasoning, sidelight, smoking, spot lighting, stage lighting, strip lighting, stuffing, taxidermy, tinning, tonality, visible radiation


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