emittance
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emittance
[i′mit·əns] (thermodynamics)
The power radiated per unit area of a radiating surface. Also known as emissive power; radiating power.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
emittance
The ratio of radiant flux emitted by a material to that emitted by a blackbody at the same temperature, under the same conditions.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.