The action of irradiating, or emitting rays or beams of light; shining.
| 单词 | θ76290 |
| 释义 | the world > matter > physics > electromagnetic radiation > light > emission of light, radiation > [noun] (56) irradiation1599 The action of irradiating, or emitting rays or beams of light; shining. eradiation1633 The action or process of eradiating or shining forth; the emission of rays of light or heat. radiature1663 The act or process of radiating; a pattern or mode of radiation. diradiation1706 The diffusion of rays from a luminous body. actinism1847 The radiation of heat or light (see quot. 1847). Obsolete. rare. Cerenkov effect1940 Used attributively in Cerenkov effect, Cerenkov radiation, etc. (see quots.). superradiance1957 The collective emission of coherent radiation by a system of excited atoms or ions, esp. as a result of the correlation of excited atomic states by… Subcategories:— transmission (4) — wave-like motion (1) — point from which rays proceed (6) — optical path (8) — meeting point (10) — distance between centre and focus (1) — vanishing point (3) — line of vision (3) — speed of light (10) — change in frequency (3) |
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