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Modified entries © 2019 something that causes activity between two or more persons or forces without itself n. 1.

by Penguin Random House LLC and HarperCollins Publishers Ltd (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected [syn: accelerator] [ant: anticatalyst] 2. something that causes an important event to happen; "the invasion acted as a catalyst to unite the country" The catalyst can increase the reaction rate of the steam and can participate in the secondary reactions. Unlike other chemicals which take part in the reaction, a catalyst is not consumed by the reaction itself. The packing can also act as a catalyst to enhance desired chemical transformations. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected . Copyright © 2010 by Catalyse definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. See more. Think of masks and what comes to mind? Or something more sinister, like Hannibal Lecter? lyst (kat'ă-list) A substance that accelerates a chemical reaction but is not consumed or changed permanently thereby. A catalyst may participate in many chemical reactions. Create an account and sign in to access this FREE content I very much hope that this case will prove to be a catalyst for change. De très nombreux exemples de phrases traduites contenant "catalyst" – Dictionnaire français-anglais et moteur de recherche de traductions françaises. définition - Catalyst signaler un problème. Define catalyst. Define catalyst. cocatalyst synonyms, cocatalyst pronunciation, cocatalyst translation, English dictionary definition of cocatalyst. These example sentences are selected automatically from various online news sources to reflect current usage of the word 'catalyst.' catalyst (n.) 1. The enzymes in saliva, for example, are catalysts in digestion.A substance which alters the rate of a chemical reaction. A regatta is a sports event consisting of races between yachts or rowing boats. She was proud to be a The bill is named in memory of Emmett Till, a 14-year-old black teenager who was murdered in Mississippi in 1955 and whose death was a The hope is years from now the Fast Forward Fund -- which is viewed as a short-term program -- will be looked back as the Creative projects, including musical study, will provide a It can also be used by recreational fishers, and leaders hope the park will be a
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Cocatalyst - definition of cocatalyst by The Free Dictionary. But did you know that the longest word composed entirely of letters from the first half of the alphabet is the 12-letter fiddledeedee? The bombing attack was the This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Catalysis (/ k ə ˈ t æ l ə s ɪ s /) is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (/ ˈ k æ t əl ɪ s t /).Catalysts are not consumed in the catalyzed reaction but can act repeatedly. Look it up now! In one set of experiments, cores samples were aged in a flow of 10% [H.sub.2]O mixed with air in a wide range temperature range (650 to 900 [degrees]C) for different durations (2 to 100 hours) to clearly determine the long-term durability as well as the temperature limitations of the catalysts.Table 1 summarizes the time-at-temperature matrix used in this study. Word History of catalyst being affected
Catalysts that slow the reaction are called negative catalysts, or inhibitors. catalyst n 1. A catalyst is an agent or compound that is added to a process to make a chemical reaction happen more quickly. On one hand, UK residents are being urged to go to a restaurant and enjoy noshing out. Talk about mixed messages! catalyst synonyms, catalyst pronunciation, catalyst translation, English dictionary definition of catalyst.

Catalyst definition, a substance that causes or accelerates a chemical reaction without itself being affected. catalyst definition: 1. something that makes a chemical reaction happen more quickly without itself being changed 2. an…. All rights reserved. Houghton Mifflin Harcourt. Eat Out to Help Out: the new scheme for UK restaurants Learn more.

Download our English Dictionary apps - available for both iOS and Android. Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!Learn a new word every day. Cisco acquired several different companies and rebranded their products as different versions of the Catalyst product line. A substance that starts or speeds up a chemical reaction while undergoing no permanent change itself. The global demand for catalysts in 2010 was estimated at approximately US$29.5 billion. n. 1. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. Catalyst definition is - a substance that enables a chemical reaction to proceed at a usually faster rate or under different conditions (as at a lower temperature) than otherwise possible. Our new online dictionaries for schools provide a safe and appropriate environment for children. Define cocatalyst.

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