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[al-bee-doh] /ælˈbi doʊ/
noun, plural albedos.
Astronomy. the ratio of the light reflected by a planet or satellite to that received by it.
Meteorology. such a ratio for any part of the earth's surface or atmosphere.
the white, inner rind of a citrus fruit.
Origin of albedo
1855-60; < Late Latin albēdō whiteness, equivalent to alb(us) white + -ēdō noun suffix; cf. torpedo Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for albedo


the ratio of the intensity of light reflected from an object, such as a planet, to that of the light it receives from the sun
(physics) the probability that a neutron passing through a surface will return through that surface
Word Origin
C19: from Church Latin: whiteness, from Latin albus white
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for albedo

"ratio of light reflected from a surface," 1859, from Latin albedo, literally "whiteness," from albus "white" (see alb).

Online Etymology Dictionary, © 2010 Douglas Harper
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albedo in Science
The fraction of the total light striking a surface that gets reflected from that surface. An object that has a high albedo (near 1) is very bright; an object that has a low albedo (near 0) is dark. The Earth's albedo is about 0.37. The Moon's is about 0.12.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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