verb (used with object), catalyzed, catalyzing.
to act upon by catalysis.
Also, especially British, catalyse.

1885–90; cataly(sis) + (-i)ze

catalyzer, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
catalyse or catalyze (ˈkætəˌlaɪz)
(tr) to influence (a chemical reaction) by catalysis
catalyze or catalyze
'catalyser or catalyze
'catalyzer or catalyze

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin & History

variant spelling of catalyze (q.v.); for suffix, see -ize.

1890, from catalysis on model of analyze/analysis.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

catalyze cat·a·lyze (kāt'l-īz')
v. cat·a·lyzed, cat·a·lyz·ing, cat·a·lyz·es
To modify, especially to increase, the rate of a chemical reaction by catalysis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
catalyze   (kāt'l-īz')  Pronunciation Key 
To modify, especially to increase, the rate of a chemical reaction through the action of a catalyst.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
The machines they focus on are enzymes, machines which catalyse certain
  biochemical reactions.
Not to mention water, which can readily catalyse certain types of oxidation
It could catalyse further mergers that would bring gains of their own.
They rely on platinum, a metal that costs twice as much as gold, to catalyse
  the reaction.
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