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n. pl. ca·tal·y·ses (-sēz′)
The action of a catalyst, especially an increase in the rate of a chemical reaction.
[Greek katalusis, dissolution, from katalūein, to dissolve : kata-, intensive pref.; see cata- + lūein, to loosen; see leu- in Indo-European roots.]
cat′a·lyt′ic (kăt′l-ĭt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl -ses (-ˌsiːz)
(Chemistry) the acceleration of a chemical reaction by the action of a catalyst
[C17: from New Latin, from Greek katalusis, from kataluein to dissolve]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ca•tal•y•sis(kəˈtæl ə sɪs)
n., pl. -ses (-ˌsiz)
1. the causing or accelerating of a chemical change by the addition of a catalyst.
2. an action between two or more persons or forces, initiated by an agent remaining unaffected by the action.
[1645–55; < New Latin < Greek katálȳsis dissolution =kataly(ein) to dissolve (kata- cata- + lyein to loosen) + -sis -sis]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Rare. the process of decay or deterioration. See also change.See also: Decaying
the process of an agent that affects a chemical or other reaction without being itself changed or affected. See also decaying. — catalyst, n.See also: Change
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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|Noun||1.||catalysis - 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"|
autocatalysis - catalysis in which the catalyst is one of the products of the reaction
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
catalysis[kəˈtælɪsɪs] N (catalyses (pl)) [kəˈtæləˌsiːz] → catálisis f
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
n → Katalyse f
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
catalysis[kəˈtæləsɪs] n (Chem) → catalisi f
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
n. catálisis, alteración de la velocidad de una reacción química por la presencia de un catalítico.
English-Spanish Medical Dictionary © Farlex 2012