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absorbance

or absorbancy

[ab-sawr-buh ns, -zawr-] /æbˈsɔr bəns, -ˈzɔr-/
noun, Physics.
1.
the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance.
Origin of absorbance
1945-1950
1945-50; absorb(ent) + -ance
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for absorbance

absorbance

/əbˈsɔːbəns; -ˈzɔː-/
noun
1.
(physics) a measure of the light-absorbing ability of an object, expressed as the logarithm to base 10 of the reciprocal of the internal transmittance See transmittance
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
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absorbance in Medicine

absorbance ab·sorb·ance (əb-sôr'bəns, -zôr'-) or ab·sorb·an·cy or ab·sorb·en·cy (əb-sôr'bən-sē, -zôr'-)
n.

Abbr. A In spectrophotometry, equal to 2 minus the log of the percentage transmittance of light. Also called extinction, optical density.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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