CATALYSIS
\katˈaləsˌɪs], \katˈaləsˌɪs], \k_a_t_ˈa_l_ə_s_ˌɪ_s]\
Definitions of CATALYSIS
- 2011 - English Dictionary Database
- 2010 - New Age Dictionary Database
- 1913 - Webster's Revised Unabridged Dictionary
- 1920 - A practical medical dictionary.
- 1898 - Warner's pocket medical dictionary of today.
- 1914 - Nuttall's Standard dictionary of the English language
- 1874 - Etymological and pronouncing dictionary of the English language
- 1920 - A dictionary of scientific terms.
- 1846 - Medical lexicon: a dictionary of medical science
- 1916 - Appleton's medical dictionary
- 1871 - The Cabinet Dictionary of the English Language
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acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction.
By DataStellar Co., Ltd
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Chemical decomposition induced by the presence of a body which either takes no part in the reaction or is restored to its original state at the end of the process.
By Stedman, Thomas Lathrop
By William R. Warner
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A change in composition effected on a body by the mere presence of another which does not undergo any.
By Nuttall, P.Austin.
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In chem., a term used to designate certain phenomena, in which changes in the composition of substances are effected by the action of one body on another by contact.
By Stormonth, James, Phelp, P. H.
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The acceleration or retardation of a reaction due to the presence of a substance which apparently remains unchanged, e.g. enzymes.
By Henderson, I. F.; Henderson, W. D.
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The action of presence in producing decomposition; as when a body which possesses what has been termed catalytic force-( F.) Force catalytique-resolves other bodies into new compounds by mere contact or presence, without itself experiencing any modification.
By Robley Dunglison
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Catalytic action, contact action; a chemical action in which one body produces changes in one or more other bodies, without itself undergoing any change. Some examples of so called c, however, which have been most thoroughly investigated, have proved to be instances of double decomposition, the body to which the catalytic action had been ascribed really undergoing decomposition and immediately reforming, in order to be again decomposed. By a constant repetition of this process, a minute portion of the body so acting may cause chemical changes in a large bulk of other substances. The prevailing idea is that the substances which cause the c. has only the property of accelerating a reaction which would take place under any circumstances, but in a much longer time. [Gr.]
By Smith Ely Jelliffe
