absorbance

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noun ab·sor·bance \əb-ˈsȯr-bən(t)s, -ˈzȯr-\

Definition of absorbance

  1. :  the ability of a layer of a substance to absorb radiation expressed mathematically as the negative common logarithm of transmittance

Origin and Etymology of absorbance

absorb + -ance


First Known Use: 1893


Medical Dictionary

absorbance

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noun ab·sor·bance \əb-ˈsȯr-bən(t)s, -ˈzȯr-\

Medical Definition of absorbance

  1. :  the ability of a solution or a layer of a substance to absorb radiation that is expressed mathematically as the negative common logarithm of the transmittance of the substance or solution—called also optical density


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