activated charcoal

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ac·ti·vat·ed charcoal

(ăk′tə-vā′tĭd)
n.
Highly absorbent carbon obtained by heating granulated charcoal to exhaust contained gases, resulting in a very porous form with a large surface area. It is used chiefly for purifying gases by adsorption, solvent recovery, or deodorization and as an antidote to certain poisons. Also called activated carbon.
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Noun1.activated charcoal - powdered or granular carbon used for purifying by adsorptionactivated charcoal - powdered or granular carbon used for purifying by adsorption; given orally (as a slurry) it is an antidote for some kinds of poisons
atomic number 6, carbon, C - an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds