Lexic.us

Definition of Absorbance

1. Noun. (physics) a measure of the extent to which a substance transmits light or other electromagnetic radiation.

Definition of Absorbance

1. Noun. (context: physics) A logarithmic measure of the amount of light that is absorbed when passing through a substance. ¹

¹ Source: wiktionary.com

Definition of Absorbance

1. [n -S]

Medical Definition of Absorbance

1. 1. Absorbance is defined as a logarithmic function of the percent transmission of a wavelength of light through a liquid. 2. This can be used as a measure of the amount of light absorbed by a suspension of bacterial cells or a solution of an organic molecule, it is measured by a colourimeter or spectrophotometer. Absorbance values are used to plot the growth of bacteria in suspension cultures and to gauge the purity and concentration of molecules (such as proteins) in solution. See: absorption. (15 Jan 1998)

Lexicographical Neighbors of Absorbance

Literary usage of Absorbance

Below you will find example usage of this term as found in modern and/or classical literature:

1. Journal of the American Chemical Society by American Chemical Society (1879)
"Measurements of aldehyde absorbance in the absence of nucleophile were made ... The observed absorbance values were corrected for the absorbance of a blank ..."

2. Science by American Association for the Advancement of Science (1883)
"The supernatant was then drawn off and placed in a microcell of a spectrophotometer, and the absorbance was measured at 552 nm. ..."

3. Niosh Manual of Analytical Methods: Sampling and Analytical Methods for ...edited by Peter M. Eller edited by Peter M. Eller (1994)
"Run an infrared scan, in linear absorbance mode from 1000 to 650 cm"1. Draw an appropriate baseline under the absorbance band at 800 ..."

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