absorptivity

  1. Noun.  he quality of being absorptive; absorptiveness.
  2. Noun.  analytical chemistry) The constant a in the Beer's law relation A = abc, where A is the absorbance, b the path length, and c the concentration of solution. Also known as absorptive power. Formerly known as absorbency index; absorption constant; extinction coefficient.
  3. Noun.  thermodynamics) The fraction of radiation absorbed by a surface to the total radiation incident on the surface. .

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This entry was last updated on RefTopia from its source on 3/20/2012.