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The ratio of the total amount of radiation, as of light, reflected by a surface to the total amount of radiation incident on the surface.


(rɪˈflɛktəns) or

reflection factor

(Units) a measure of the ability of a surface to reflect light or other electromagnetic radiation, equal to the ratio of the reflected flux to the incident flux. Symbol: ρ Compare transmittance, absorptance


(rɪˈflɛk təns)

the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.reflectance - the fraction of radiant energy that is reflected from a surface
coefficient - a constant number that serves as a measure of some property or characteristic
References in periodicals archive ?
1: Distribution Gender layers for maximum reflectance coefficient 0.
A white membrane roof was chosen to reduce the heat island effect; the material has a high reflectance coefficient, which greatly reduces the overall heating and cooling load requirements for the building.
b] is common reflectance coefficient of the complete stack at the bottom side of the incoherent layer (not only of the interface (i2) of the incoherent layer), [d.