[ 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.
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Origin of catalysis
OTHER WORDS FROM catalysis
cat·a·lyt·ic [kat-l-it-ik] /ˌkæt lˈɪt ɪk/, adjective, nouncat·a·lyt·i·cal, adjectivecat·a·lyt·i·cal·ly, adverban·ti·cat·a·lyt·ic, adjective, noun
an·ti·cat·a·lyt·i·cal·ly, adverbnon·cat·a·lyt·ic, adjective, nounnon·cat·a·lyt·i·cal·ly, adverbself-ca·tal·y·sis, nounsem·i·cat·a·lyt·ic, adjective
Words nearby catalysis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for non-catalytic
/ (kəˈtælɪsɪs) /
noun plural -ses (-ˌsiːz)
acceleration of a chemical reaction by the action of a catalyst
Word Origin for catalysis
C17: 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 non-catalytic
[ 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.