Also found in: Thesaurus, Medical, Acronyms, Encyclopedia, Wikipedia.


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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(rɪˈflɛk təns)

the ratio of the intensity of reflected radiation to that of the radiation incident on a surface.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Reflectance confocal microscopy is a US Food and Drug Administration (FDA)-approved device (since 2008) that is used to supplement the bedside management of skin lesions, such as skin cancers and inflammatory processes.
After strike measurements were recorded, we recorded the spectral reflectance and size of each of the stomatopod's meral spots.
As the Director of Target Technologies at Photon Research Associates, he developed the Coatings Reflectance Engineering Evaluation Program (CREEP) for performing light scattering analysis of pigmented paint coatings and composite surfaces and was the Director of IR/EO Materials Technology at McDonnell Douglas Technologies, Inc.
Reflectance confocal microscopy (RCM) is a noninvasive imaging modality that provides real-time, cellular-level resolution images.
A series of glaze color measurements were carried out to evaluate the reflectance color profile of various transition metals in a clear glaze base.
Under the same measurement conditions, the difference between reflectance spectra of coal and carbonaceous shale mainly depends on the material compositions.
Enface thickness maps and reflectance images were generated for each of 7 retinal layers (NFL, GCLIPL, INL, OPL, ONL, OSL, and RPE) based on segmentation of the 8 retinal interfaces in the SDOCT B-scans.
"Over the lifecycle of the pavement, the pavement material matters substantially more than the pavement reflectance," explains Ronnen Levinson, a researcher in Berkeley Lab's Heat Island Group.
Part one of our study explores how tornadoes affect the reflectance and commonly used indices derived from reflectance, such as the Normalized Difference Vegetation Index (NDVI) and the Tasseled Cap indices of brightness, greenness, and wetness, when comparing damaged forest, grassland, and urban land cover.
Within this context, the objective of this study was to characterize the variability of spectral reflectance and temporal profiles of vegetation indices associated with nitrogen fertilization, crop cycle periods, and predominating weather conditions during the winter canola growing season in southern Brazil.
In general, the reflectance of a metal is governed by the amount of light reflected off the metal specularly [17].