Irradiance
[ih-rey-dee-uh ns] /ɪˈreɪ di əns/
noun, Physics.
1.
incident flux of radiant energy per unit area.
/ɪˈreɪdɪəns/
noun
1.
the radiant flux incident on unit area of a surface. It is measured in watts per square metre Ee Also called irradiation Compare illuminance
adj.
1660s, from irradiant (1520s), from Latin irradiantem (nominative irradians), present participle of irradiare (see irradiate). Related: Irradiancy (1640s).
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[verb ih-rey-dee-eyt; adjective ih-rey-dee-it, -eyt] /verb ɪˈreɪ diˌeɪt; adjective ɪˈreɪ di ɪt, -ˌeɪt/ verb (used with object), irradiated, irradiating. 1. to shed rays of light upon; illuminate. 2. to illumine intellectually or spiritually. 3. to brighten as if with light. 4. to radiate (light, illumination, etc.). 5. to heat with radiant energy. 6. to treat […]
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[ih-rad-i-kuh-buh l] /ɪˈræd ɪ kə bəl/ adjective 1. . adj. 1728, from ir- “not” + radicable.