absorption

absorption [Lat., = sucking from], taking of molecules of one substance directly into another substance. It is contrasted with adsorption, in which the molecules adhere only to the surface of the second substance. Absorption may be either a physical or a chemical process, physical absorption involving such factors as solubility and vapor-pressure relationships and chemical absorption involving chemical reactions between the absorbed substance and the absorbing medium.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on absorption from Fact Monster:

  • spectrum - spectrum spectrum, arrangement or display of light or other form of radiation separated according ...
  • samadhi - samadhi samadhi , a state of deep absorption in the object of meditation, and the goal of many ...
  • catchment area - catchment area catchment area or drainage basin,area drained by a stream or other body of water. ...
  • carotene - carotene carotene , long-chained, unsaturated hydrocarbon found as a pigment in many higher plants, ...
  • George V, king of Hanover - George V George V, 1819–78, last king of Hanover (1851–66), son and successor of Ernest ...

See more Encyclopedia articles on: Physics