The emission of heat-rays.
| 单词 | θ76236 |
| 释义 | the world > matter > physics > electromagnetic radiation > heat > [noun] > emission or diffusion (23) irradiation1794 The emission of heat-rays. radiance1800 Radiation that is perceived as heat or light, electromagnetic radiation; the emission of such radiation. Obsolete. radiation1802 The emission of heat in the form of rays. actinism1847 The radiation of heat or light (see quot. 1847). Obsolete. rare. scattering1866 spec. in Physics: cf. scatter, v. 5e. emissivity1880 Emissive or radiating power of heat or light; spec. in Physics (see quot. 1958). Subcategories:— that which radiates (2) — energy produced by (15) |
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