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Irradiation   Listen
noun
irradiation  n.  
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.






Collaborative International Dictionary of English 0.48








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"Irradiation" Quotes from Famous Books



... need of God, then one must form or receive an acceptable idea of God. That much is no more than turning one's face to the east to see the coming of the sun. One may still doubt if that direction is the east or whether the sun will rise. The real coming of God is not that. It is a change, an irradiation of the mind. Everything is there as it was before, only now it is aflame. Suddenly the light fills one's eyes, and one knows that God has risen and that doubt has fled ...
— God The Invisible King • Herbert George Wells

... said. On the other hand, subjective sensations due to varying conditions in the skin are a very frequent exciting cause of dreams. Variations in the state of tension of the skin, brought about by alteration of position, changes in the character of the circulation, the irradiation of heat to the skin or the loss of the same, chemical changes,—these are known to give rise to a number of familiar sensations, including those of tickling, itching, burning, creeping, and so on; and the effects of these sensations ...
— Illusions - A Psychological Study • James Sully

... Christendom, that Pope Alexander IV. (1255) found it necessary to interfere. By his order, Albertus Magnus composed a work against the "Unity of the Intellect." Treating of the origin and nature of the soul, he attempted to prove that the theory of "a separate intellect, enlightening man by irradiation anterior to the individual and surviving the individual, is a detestable error." But the most illustrious antagonist of the great commentator was St. Thomas Aquinas, the destroyer of all such heresies as the unity of the intellect, the denial of Providence, the impossibility of creation; ...
— History of the Conflict Between Religion and Science • John William Draper

... reluctant and sullen blaze, which flashed wavering up the pillar of smoke, and was suddenly rendered brighter and more lively by some drier fuel, or perhaps some splintered fir-timber, which at once converted the smoke into flame. By such fitful irradiation, they could see, more or less distinctly, the form of Hatteraick, whose savage and rugged cast of features, now rendered yet more ferocious by the circumstances of his situation, and the deep gloom of his mind, assorted well with the rugged and broken ...
— Guy Mannering • Sir Walter Scott

... hearing, and the survival, it is said, from a distant period of humanity, when this state must have been the rule; anatomically, the result of supposed anastamoses between the cerebral centers for visual and auditory sensations; physiologically, the result of nervous irradiation; psychologically, the result of association. This latter hypothesis seems to account for the greater number of instances, if not for all; but, as Flournoy has observed, it is a matter of "affective" imagination. Two sensations absolutely ...
— Essay on the Creative Imagination • Th. Ribot

... spangle, brightness, brilliancy, splendor; effulgence, refulgence; fulgor[obs3], fulgidity[obs3]; dazzlement[obs3], resplendence, transplendency[obs3]; luminousness &c. adj.; luminosity; lucidity; renitency|, nitency[obs3]; radiance,, radiation; irradiation, illumination. actinic rays, actinism; Roentgen-ray, Xray; photography, heliography; photometer &c. 445. [Science of light] optics; photology[obs3], photometry; dioptrics[obs3], catoptrics[obs3]. [Distribution of light] ...
— Roget's Thesaurus

... above the ordinary range of philosophical or political poetry. But Shelley's encouragement, probably his guidance and supervision, have raised his wife's inspiration to a place considerably higher than that of Frankenstein or Valperga. With all their faults these pages reflect some of that irradiation which Shelley cast around his own life—the irradiation of a dream beauteous and generous, beauteous in its theology (or its substitute for theology) and generous even in ...
— Proserpine and Midas • Mary Shelley



Words linked to "Irradiation" :   beam, stimulus generalisation, light beam, condition, low beam, ray of light, shaft of light, sunbeam, radiation therapy, sunray, phototherapy, medical specialty, radiation, generalisation, shaft, spreading, illusion, moon ray, X-ray therapy, visible radiation, moonbeam, Curietherapy, actinotherapy, ray, medicine, moon-ray, visible light, generalization, stimulus generalization, physiology



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