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irradiance |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Irradiance \Ir*ra"di*ance\, Irradiancy \Ir*ra"di*an*cy\, n. [From {Irradiant}.] 1. The act of irradiating; emission of rays of light. 2. That which irradiates or is irradiated; luster; splendor; irradiation; brilliancy. --Milton.