[ ad-sawrb, -zawrb ]
/ ædˈsɔrb, -ˈzɔrb /
verb (used with object) Physical Chemistry.
to gather (a gas, liquid, or dissolved substance) on a surface in a condensed layer: Charcoal will adsorb gases.
ad·sorb·a·ble, adjectivead·sorb·a·bil·i·ty, nounad·sorb·ent, adjective, nounad·sorp·tion [ad-sawrp-shuh n, -zawrp-] /ædˈsɔrp ʃən, -ˈzɔrp-/, noun
ad·sorp·tive, adjectivead·sorp·tive·ly, adverb
Can be confusedabsorb adsorb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for adsorbent (1 of 2)
/ (ədˈsɔːbənt, -ˈzɔː-) /
capable of adsorption
a material, such as activated charcoal, on which adsorption can occur
British Dictionary definitions for adsorbent (2 of 2)
/ (ədˈsɔːb, -ˈzɔːb) /
to undergo or cause to undergo a process in which a substance, usually a gas, accumulates on the surface of a solid forming a thin film, often only one molecule thickto adsorb hydrogen on nickel; oxygen adsorbs on tungsten Compare absorb (def. 8)
Derived Formsadsorbable, adjectiveadsorbability, nounadsorption, noun
Word Origin for adsorb
C19: ad- + -sorb as in 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
Word Origin and History for adsorbent
1882, transitive (intransitive use attested from 1919), back-formation from adsorption (1882), coined in German from ad- + -sorption, abstracted from absorption. See absorb. Related: Adsorbent; adsorption.
Online Etymology Dictionary, © 2010 Douglas Harper
Medicine definitions for adsorbent (1 of 2)
[ ăd-zôr′bənt ]
Capable of adsorption.
An adsorptive substance.
A pharmacological substance capable of attaching other substances to its surface without any chemical action.
An antigen or antibody used in immune adsorption.
Medicine definitions for adsorbent (2 of 2)
[ ăd-zôrb′ ]
To take up by adsorption.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.