单词 | catalysis |
释义 | catalysis[ kuh-tal-uh-sis ] / kəˈtæl ə sɪs / noun, plural ca·tal·y·ses [kuh-tal-uh-seez]. /kəˈtæl əˌsiz/.Chemistry. the causing or accelerating of a chemical change by the addition of a catalyst. an action between two or more persons or forces, initiated by an agent that itself remains unaffected by the action: social catalyses occasioned by controversial writings. Origin of catalysis1645–55; <New Latin <Greek katálȳsis dissolution, equivalent to katalȳ́(ein) to dissolve (kata-cata- + lȳ́ein to loosen) + -sis-sis OTHER WORDS FROM catalysisWords nearby catalysisCatalonia, Catalonian, catalpa, catalufa, catalyse, catalysis, catalyst, catalytic, catalytic converter, catalytic cracker, catalytic cracking Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for catalysisBritish Dictionary definitions for catalysiscatalysis / (kəˈtælɪsɪs) / noun plural -ses (-ˌsiːz)acceleration of a chemical reaction by the action of a catalyst Word Origin for catalysisC17: from New Latin, from Greek katalusis, from kataluein to dissolve Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Medical definitions for catalysiscatalysis [ kə-tăl′ĭ-sĭs ] n. pl. ca•tal•y•ses (-sēz′)The action of a catalyst, especially an increase in the rate of a chemical reaction. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. |
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