Definition of Emissivity

1. n. Tendency to emission; comparative facility of emission, or rate at which emission takes place, as of heat from the surface of a heated body.



2. n. Tendency to emission; comparative facility of emission, or rate at which emission takes place;

Definition of Emissivity

1. Noun. (physics) The energy-emitting propensity of a surface, usually measured at a specific wavelength. ¹

¹ Source: wiktionary.com

Definition of Emissivity

1. [n -TIES]

Medical Definition of Emissivity

1. The giving off of heat rays; a perfect black body has an emissivity of 1, a highly polished metallic surface may have an emissivity as low as 0.02. (05 Mar 2000)

Emissivity Pictures

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Lexicographical Neighbors of Emissivity

emission
emission-computed tomography
emission electron
emission line
emission lines
emission offset
emission spectrum
emission standard
emission theory
emissions
emissions test
emissions tests
emissitious
emissive
emissivities
emissivity (current term)
emissory
emit
emits
emittance
emittances
emitted
emittent
emitter
emitter-coupled logic
emitters
emitting
emma
emmantle
emmantled

Literary usage of Emissivity

Below you will find example usage of this term as found in modern and/or classical literature:

1. Proceedings of the Royal Society of London by Royal Society (Great Britain) (1892)
"The following Papers were read :— I. " The Thermal emissivity of Thin Wires in ... The very valuable investigations that have been made on emissivity by Mr. ..."

2. Journal of the Washington Academy of Sciences by Washington Academy of Sciences (1915)
"The total emissivity of platinum and the relation between total emissivity ... Defining the monochromatic emissivity as Ex = — Rx and expanding the above ..."

3. Smithsonian Physical Tables by Smithsonian Institution, Thomas Gray (1896)
"In these equations f is the emissivity in cgs units, that is, the quantity of heat, in therms, radiated per second per square centimetre of surface of the ..."

4. The Theory of Heat by Thomas Preston (1904)
"For this reason it is customary to speak of the emissivity or emissive power of a substance or of the surface of a body. The radiating body employed by ..."

5. Transactions of the American Institute of Mining, Metallurgical and (1917)
"Then, assuming the optical emissivity which he feels is correct for the optical pyrometer, he could calculate the thermal emissivity for use with the ..."

6. Summarized Proceedings ... and a Directory of Members (1889)
"ON A METHOD OF DETERMINING THE emissivity OF A METALLIC BAB COOLING OR ... the emissivity or surface conductivity may be found in terms of the thermal ..."

7. Summarized Proceedings ... and a Directory of Members by American Association for the Advancement of Science (1889)
"ON A METHOD OF DETERMINING THE emissivity OF A METALLIC BAR COOLING OR HEATING IN ... the emissivity or surface conductivity may be found in terms of the ..."

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