ALL meanings of absorptivity

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  • noun absorptivity a measure of the ability of a material to absorb radiation, equal to the internal absorptance of a homogeneous layer of the material under conditions in which the path of the radiation has unit length and the boundaries of the layer have no influence 3
  • noun absorptivity The quality of being absorptive; absorptiveness. (First attested in the mid 19th century.). 1
  • noun absorptivity the property of a body that determines the fraction of incident radiation absorbed or absorbable by the body. 1
  • noun absorptivity (thermodynamics) The fraction of radiation absorbed by a surface to the total radiation incident on the surface. 0
  • noun absorptivity (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. 0
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