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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



... error without precedent, although the appearances attending respectively a total and an annular eclipse are in reality wholly dissimilar. In the latter case, the surviving ring of sunlight becomes so much enlarged by irradiation, that the interposed dark lunar body is reduced to comparative insignificance, or even invisibility. Maclaurin tells us[159] that during an eclipse of this character which he observed at Edinburgh in 1737, "gentlemen by no means shortsighted declared themselves unable to discern the moon ...
— A Popular History of Astronomy During the Nineteenth Century - Fourth Edition • Agnes M. (Agnes Mary) Clerke

... were a little undertone; the look that went with them the doctor never forgot as long as he lived. His questions about the festivities she had answered with a placid, pleased face; pleased that he should ask her; but a soft irradiation of joy had beamed upon the fact that the poor cripple was making a great step upwards in the scale of human life. The doctor had not forgotten his share in the permission Daisy had received, which he thought he saw she ...
— Melbourne House, Volume 2 • Susan Warner

... Transforms, enlarges that part, lightens this; And when upon the pedestal you stand Complete, cries out in triumph: "Now she is At last what woman ought to be: Behold, How plastically calm, how marble-cold! Bathed in the lamplight's soft irradiation, How well in keeping with the decoration!" [Seizing her hand. But if you are to die, live first! Come forth With me into the glory of God's earth! Soon, soon the gilded cage will claim its prize. The Lady thrives there, ...
— Love's Comedy • Henrik Ibsen

... bright eyes with as vivid and immediate an irradiation as if the brilliant procession which she pictured deployed even now, chiefly in ox-wagons, before them. She caught off her bonnet from her head,—it seemed a sort of moral barometer; she never wore it when the indications of the inner atmosphere ...
— The Mystery of Witch-Face Mountain and Other Stories • Charles Egbert Craddock

... multiplies and deepens the demarcations among material things, he gives his souls a rare faculty of transcending them. Bright spiritual beings like Pippa shed their souls innocently and unwittingly about like a spilth of "X-rays," and the irradiation penetrates instantly the dense opposing integuments of passion, cupidity, and worldliness. At all times in his life these accesses of spiritual power occupied his imagination. Cristina's momentary glance and the Lady of Tripoli's dreamed-of face ...
— Robert Browning • C. H. Herford

... microscope, and anticipated many years Brewster's theory. Hopkinson wrote well on the experiment made by looking at a street lamp through a slight texture of silk. Joscelyn, of New York, investigated the causes of the irradiation manifested by luminous bodies, as for instance the stars. Of late, photographic experiments have occupied much attention, and Draper has advanced the bold idea, supported by experiment, that the agent in the so-called photography, ...
— Continental Monthly , Vol. 6, No. 1, July, 1864 - Devoted to Literature and National Policy. • Various

... This invitation is an irradiation of Christ, the eternal sun, and causes in the heart a joy and pleasure so great that the heart cannot close again after such an expansion, without pain. A man is wounded internally and feels the smart of love. To be wounded by love is the sweetest ...
— Light, Life, and Love • W. R. Inge



Words linked to "Irradiation" :   actinotherapy, medicine, medical specialty, stimulus generalization, light, spread, stimulus generalisation, spreading, phototherapy, ray, sunbeam, beam, shaft of light, generalization, radiotherapy, light beam, therapy, shaft, laser beam, X-ray therapy, sunray, moonbeam, visible light, radiation therapy, condition



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