activated charcoal

activated carbon

noun Chemistry.
a form of carbon having very fine pores: used chiefly for adsorbing gases or solutes, as in various filter systems for purification, deodorization, and decolorization.
Also called activated charcoal.


Origin:
1920–25

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World English Dictionary
activated carbon
 
n
activated charcoal, Also called: active carbon a porous highly adsorptive form of carbon used to remove colour or impurities from liquids and gases, in the separation and extraction of chemical compounds, and in the recovery of solvents

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American Heritage
Medical Dictionary

activated charcoal ac·ti·vat·ed charcoal (āk'tə-vā'tĭd)
n.
Finely powdered charcoal treated to increase its adsorptive power; it is used in treating diarrhea, as an antidote, and in purification processes in industry.

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Science Dictionary
activated charcoal   (āk'tə-vā'tĭd)  Pronunciation Key 
Highly absorbent carbon obtained by heating granulated charcoal to expel any gases it contains, resulting in a highly porous form with a very large surface area. It is used primarily for purifying gases by adsorption, solvent recovery, or deodorization and as an antidote to certain poisons.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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