Thesaurus: irradiation

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Definitions

1. n. Act of irradiating, or state of being irradiated.
2. n. Illumination; irradiance; brilliancy.
3. n. Fig.: Mental light or illumination.
4. n. 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.
5. n. the condition of being exposed to radiation
6. n. a column of light (as from a beacon)
7. n. (physiology) the spread of sensory neural impulses in the cortex
8. n. the apparent enlargement of a bright object when viewed against a dark background
9. n. (Pavolvian conditioning) the elicitation of a conditioned response by stimulation similar but not identical to the original stimulus
10. n. (medicine) the treatment of disease (especially cancer) by exposure to a radioactive substance
11. 1. Act of irradiating, or state of being irradiated. 2. Illumination; irradiance; brilliancy. Sir W. Scott. 3. Fig.: Mental light or illumination. Sir M. Hale. 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.
12. The apparent enlargement of a bright object seen upon a darkground, due to the fact that the portions of the retina around theimage are stimulated by the intense light; as when a dark spot on awhite ground appears smaller, or a white spot on a dark groundlarger, than it really is, esp. when a little out of focus.