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Irradiation   /ɪrˌeɪdiˈeɪʃən/   Listen

The condition of being exposed to radiation.
A column of light (as from a beacon).  Synonyms: beam, beam of light, light beam, ray, ray of light, shaft, shaft of light.
(physiology) the spread of sensory neural impulses in the cortex.
The apparent enlargement of a bright object when viewed against a dark background.
(Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus.
(medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance.  Synonyms: actinotherapy, radiation, radiation therapy, radiotherapy.

WordNet 3.0 © 2010 Princeton University

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"Irradiation" Quotes from Famous Books

... the seemingly esoteric character of a philosophy which sees the invisible in the visible, the spiritual in the corporeal, and the reflection of the unknowable God in everything. There are certain details also which are common to both, such as the analogies of irradiation of light or flowing of water used to represent the process of creation, the position of the Will, the existence of matter in spiritual beings, and so on, though some of these ideas are common to all Neo-Platonic systems, and the ...
— A History of Mediaeval Jewish Philosophy • Isaac Husik

... the purpose of the Transfiguration? Matthew seems to tell us in that 'before them.' It was for their sakes, not for His, as indeed follows from the belief that it was the irradiation from within of the indwelling light. The new epoch of His life, in which they were to have a share of trial and cross-bearing, needed some great encouragement poured into their tremulous hearts; and so, for once, ...
— Expositions of Holy Scripture - St. Matthew Chaps. IX to XXVIII • Alexander Maclaren

... nevertheless it was not so much of beautiful Joan Hilliard that the beholder was reminded, at this moment, as of the younger sister, who had no beauty at all, for Esmeralda's perfect features lacked the irradiation of kindliness and humour which characterised Pat and ...
— The Love Affairs of Pixie • Mrs George de Horne Vaizey

... pinnacles of grey and red rocks and shadowy high white regions at the head of the gulf waiting for the sun; and the sun struck them. One by one they came out in crimson flame, till the vivid host appeared to have stepped forward. The shadows on the snow-fields deepened to purple below an irradiation of rose and pink and dazzling silver. There of all the world you might imagine Gods to sit. A crowd of mountains endless in range, erect, or flowing, shattered and arid, or leaning in smooth lustre, hangs above the gulf. The mountains are sovereign Alps, and the sea is beneath them. The whole gigantic ...
— The Shaving of Shagpat • George Meredith

... Madonna's dress being especially lovely and distinguished, and vulgarizing the Ghirlandaio—No. 1297—which hangs next. This picture is far too hot throughout, and would indeed be almost displeasing but for the irradiation of the Virgin's face. The other Ghirlandaio—No. 1295—in this room is far finer and sweeter; but at the Accademia and the Badia we are to see him at his best in this class of work. None the less, No. 1295 is a charming thing, and the little Mother and her happy Child, whose big toe is being so ...
— A Wanderer in Florence • E. V. Lucas

... mere punctures. I was sensible of a momentary fear of the man—not, let me say, an emotion of cowardice—but a sort of mixture of alarm and awe, such as a ghost might inspire. This I put down to the searching light in which I watched him for a moment or two, an irradiation subtle enough to give the sharpest form to expression, to exquisitely define every meaning that was distinguishable in his graveyard physiognomy. I left him to stare and judge for himself of the posture in which the long hard gale had put the schooner and stepped over to the two ...
— The Frozen Pirate • W. Clark Russell

... thick veil that she had provided for this escapade, to walk out of the station without fear of recognition. St. Cleeve came forth from another compartment, and they did not rejoin each other till they had reached a shadowy bend in the old turnpike road, beyond the irradiation of ...
— Two on a Tower • Thomas Hardy

... boatswain dropped a frightful oath. The ship was still nine miles away, and at such a distance it was impossible for our signal to be seen; our tiny raft, a mere speck upon the waters, would be lost in the intense irradiation of the sun- beams. If only we could be seen, no doubt all would be well; no captain would have the barbarous inhumanity to leave us to our fate; but there had been no chance; only too well we knew that we had not been within range ...
— The Survivors of the Chancellor • Jules Verne

Words linked to "Irradiation" :   stimulus generalisation, moon ray, sunray, radium therapy, high beam, stimulus generalization, condition, spreading, physiology, X-ray therapy, medical specialty, moonbeam, light, irradiate, moon-ray, generalization, visible radiation, generalisation, laser beam, phototherapy, semblance, medicine, status, low beam, therapy, spread, heat ray, visible light, illusion, Curietherapy, sunbeam

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