absorbance

[ ab-sawr-buhns, -zawr- ]

Phonetic (Standard)IPA

noun

, Physics.

the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance.

absorbance

/ -ˈzɔː-; əbˈsɔːbəns /

noun

See transmittance
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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Example Sentences

For robin CRY4, the addition of a magnetic field changed the amount of absorbance, a sign that the magnetic field was affecting how much of the altered form of the protein was produced.

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April 18, 2024petrichor

[pet-ri-kawr]

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absorb absorbed

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