1. absorption a process in which one substance permeates another
  2. absorption spectrum the spectrum of electromagnetic radiation that has passed through a medium that absorbed radiation of certain wavelengths
  3. absorptive having the power or tendency to soak up something
  4. absorptivity (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body
  5. absorptance a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
  6. absorption band a dark band in the spectrum of white light that has been transmitted through a substance that exhibits absorption at selective wavelengths
  7. absorption coefficient a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber
  8. absorption factor (physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body
  9. absorption indicator an indicator used in reactions that involve precipitation
  10. absorption unit a unit for measuring absorption

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