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absorbance

[ ab-sawr-buhns, -zawr- ]

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.


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


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Word History and Origins

Origin of absorbance1

First recorded in 1945–50; absorb(ent) + -ance

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