[ ab-sawrp-shuhn, -zawrp- ]
/ æbˈsɔrp ʃən, -ˈzɔrp- /


Origin of absorption

1590–1600; <Latin absorptiōn- (stem of absorptiō), equivalent to absorpt(us), past participle of absorbēre to absorb + -iōn--ion


hy·per·ab·sorp·tion, nounin·ter·ab·sorp·tion, nounnon·ab·sorp·tion, nouno·ver·ab·sorp·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for absorption

British Dictionary definitions for absorption

/ (əbˈsɔːpʃən, -ˈzɔːp-) /


the process of absorbing or the state of being absorbed
  1. normal assimilation by the tissues of the products of digestion
  2. the passage of a gas, fluid, drug, etc, through the mucous membranes or skin
physics a reduction of the intensity of any form of radiated energy as a result of energy conversion in a medium, such as the conversion of sound energy into heat
immunol the process of removing superfluous antibodies or antigens from a mixture using a reagent

Derived forms of absorption

absorptive, adjective

Word Origin for absorption

C16: from Latin absorptiōn-, from absorbēre to absorb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for absorption

[ əb-zôrpshən ]


The taking in or incorporation of something, such as a gas, a liquid, light, or heat.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for absorption

[ əb-sôrpshən ]

Biology The movement of a substance, such as a liquid or solute, across a cell membrane by means of diffusion or osmosis.
Chemistry The process by which one substance, such as a solid or liquid, takes up another substance, such as a liquid or gas, through minute pores or spaces between its molecules. A paper towel takes up water, and water takes up carbon dioxide, by absorption. Compare adsorption.
Physics The taking up and storing of energy, such as radiation, light, or sound, without it being reflected or transmitted. During absorption, the energy may change from one form into another. When radiation strikes the electrons in an atom, the electrons move to a higher orbit or state of excitement by absorption of the radiation's energy.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.