catalysis

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catalysis

 [kah-tal´ĭ-sis]
increase in the velocity of a chemical reaction or process produced by the presence of a substance that is not consumed in the net chemical reaction or process; negative catalysis denotes the slowing down or inhibition of a reaction or process by the presence of such a substance. adj., adj catalyt´ic.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ca·tal·y·sis

(kă-tal'i-sis),
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]
Farlex Partner Medical Dictionary © Farlex 2012

ca·tal·y·sis

(kă-tal'i-sis)
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

ca·tal·y·sis

(kă-tal'i-sis)
The effect that a catalyst exerts on a chemical reaction.
[G. katalysis, dissolution]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Base Catalysed transesterification: Caustic soda (2g) was dissolved in methanol (70g) in a round bottom flask equipped with a condenser and stirring and heating arrangements and to this was added bleached oil (100g).
Acid Catalysed Transesterification: In a round bottom flask equipped with stirring and heating arrangements and a condenser, was added a mixture of methyl alcohol (70g) and bleached oil (100g) and 2g of H2SO4 as a Catalyst was introduced.
Two stage transesterification: Bleached Oil (100g) was first transesterified according to the procedure adopted under acid catalysed process but at the end of reaction time (3hr) the removal of excess methanol was not carried out.