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definitions

reflectance

[ ri-flek-tuh ns ]
/ rɪˈflɛk təns /

noun Physics, Optics.

the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.

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Nearby words

  1. reflate,
  2. reflation,
  3. reflationary,
  4. reflect,
  5. reflect on,
  6. reflected plan,
  7. reflecting telescope,
  8. reflection,
  9. reflection coefficient,
  10. reflection density
Compare albedo.

Origin of reflectance

First recorded in 1925–30; reflect + -ance
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for reflectance

reflectance

reflection factor

/ (rɪˈflɛktəns) /

noun

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 fluxSymbol: ρ Compare transmittance, absorptance
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012