reflectance

[ri-flek-tuhns]

re·flect·ance

[ri-flek-tuhns]
noun Physics, Optics.
the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.
Compare albedo.


Origin:
1925–30; reflect + -ance
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Reflectance is always a great word to know.
So is attraction. Does it mean:
the electric or magnetic force that acts between oppositely charged bodies, tending to draw them together
pertaining to a mass of radioactive material in which the rate of a chain reaction increases with time
Collins
World English Dictionary
reflectance or reflection factor (rɪˈflɛktəns)
 
n
transmittance Compare absorptance ρ 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
 
reflection factor or reflection factor
 
n

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