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Catalyst - Dictionary Definition and Overview |
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Catalyst : (noun)
1: (chemistry) a substance that initiates or accelerates a
chemical reaction without itself being affected [syn: accelerator]
[ant: anticatalyst]
2: something that causes an important event to happen; "the
invasion acted as a catalyst to unite the country"
Based on WordNet 2.0
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Catalyst : Catalyst: A substance that speeds up a chemical reaction but is not consumed or altered in the process. Catalysts are of immense importance in chemistry and biology.
All glucose , doing in minutes what would otherwise take weeks.
The word "catalyst" was introduced into science by the great Swedish chemist Jons Jakob Berzelius (1779-1848) who also determined the atomic and molecular weights of thousands of substances,
discovered several elements including selenium , first isolated silicon and titanium, and created the present system of writing chemical symbols and reactions.
Based on University of Miami School of Medicine [Medical_Dictionary]:
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Catalyst : A substance that speeds up a chemical reaction without being consumed itself in the reaction. A substance that alters (usually increases) the rate at which a reaction occurs.
Based on University of Miami School of Medicine [Medical_Dictionary]:
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