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1. (n.) catalysis
the causing or accelerating of a chemical change by the addition of a catalyst.
2. catalysis
an action between two or more persons or forces, initiated by an agent remaining unaffected by the action.
Etymology: (1645–55; < NL < Gk katál&ymacr;sis dissolution =katal&ymacracute;(ein) to dissolve (kata-cata - +l&ymacracute;ein to loosen) +-sis -sis)
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| Definition of 'catalysis' |
Princeton's WordNet |
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1. (noun) catalysis, contact action
acceleration of a chemical reaction induced the presence of material that is chemically unchanged at the end of the reaction
"of the top 50 commodity chemicals, 30 are created directly by catalysis and another 6 are made from raw materials that are catalytically produced"
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| Definition of 'catalysis' |
Webster Dictionary |
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1. (noun) catalysis
dissolution; degeneration; decay
2. (noun) catalysis
a process by which reaction occurs in the presence of certain agents which were formerly believed to exert an influence by mere contact. It is now believed that such reactions are attended with the formation of an intermediate compound or compounds, so that by alternate composition and decomposition the agent is apparenty left unchanged; as, the catalysis of making ether from alcohol by means of sulphuric acid; or catalysis in the action of soluble ferments (as diastase, or ptyalin) on starch
3. (noun) catalysis
the catalytic force
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| Definition of 'catalysis' |
U.S. National Library of Medicine |
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1. catalysis
The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.
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Definitions of catalysis 
