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Definition of «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 enzymes are catalysts that expedite the biochemical reactions necessary for life. The enzymes in saliva, for example, accelerate the conversion of starch to 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.

For More Information «Catalyst»

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  • catalyst: Definition, Synonyms from Answers.com

    Library > Literature & Language > Dictionary ( kăt ' l-ĭst ) n. Chemistry . A substance, usually used in small amounts relative to the reactants, that modifies and ...

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    The Catalyst is Santa Cruz and Monterey Bay's premier nightclub, featuring live music from around the world. Artists such as Neil Young, Papa Roach, Emmylou Harris, Ice T ...

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    With Unlimited Layout and Widget Area possibilities along with 800+ design options at your finger tips, the Catalyst Premium WordPress Theme Framework is the only WP ...

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    The elegant MVC framework Catalyst will make web development something you had never expected it to be: Fun, rewarding and quick.

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