absorption coefficient

noun Physics, Optics.

a measure of the rate of decrease in the intensity of electromagnetic radiation, as light, as it passes through a given substance.

Nearby words

  1. absorptiometer,
  2. absorptiometry,
  3. absorption,
  4. absorption band,
  5. absorption chromatography,
  6. absorption costing,
  7. absorption dynamometer,
  8. absorption edge,
  9. absorption hygrometer,
  10. absorption spectrum

Origin of absorption coefficient

First recorded in 1895–1900

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for absorption coefficient

absorption coefficient


The milliliters of a gas at standard temperature and pressure that will saturate 100 milliters of liquid.
The amount of light absorbed in 1 atom or in 1 unit of thickness or mass of a given substance.

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