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reflectance

[ ri-flek-tuhns ]

noun

, Physics, Optics.
  1. the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.

reflectance

/ rɪˈflɛktəns /

noun

  1. See absorptance, transmittance
    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 ρ Compare transmittance absorptance

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Word History and Origins

Origin of reflectance1

First recorded in 1925–30; reflect + -ance

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reflectreflected plan

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