[ ih-rey-dee-uh ns ]
/ ɪˈreɪ di əns /
incident flux of radiant energy per unit area.
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Words nearby irradiance
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British Dictionary definitions for irradiance
/ (ɪˈreɪdɪəns) /
the radiant flux incident on unit area of a surface. It is measured in watts per square metreSymbol: E e Also called: irradiation Compare illuminance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012