WEBThe meaning of CATALYST 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. How to use catalyst in a sentence.
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CATALYST | definition in the Cambridge English Dictionary
WEBcatalyst. noun [ C ] us / ˈkæt̬· ə l·ɪst /. Add to word list. Add to word list. a condition, event, or person that is the cause of an important change. biology, chemistry. A catalyst is also …
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Catalyst - Definition, Meaning & Synonyms | Vocabulary.com
WEBDefinitions of catalyst. noun. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected. synonyms: accelerator. see more. noun. something that causes an important event to happen.
WEBA substance that starts or speeds up a chemical reaction while undergoing no permanent change itself. The enzymes in saliva, for example, are catalysts in digestion. catalyst. In chemistry, a substance that causes a chemical reaction to occur but is not itself involved in the reaction.
WEBa condition, event, or person that is the cause of an important change. biology, chemistry. A catalyst is also a substance that causes or speeds a chemical reaction …
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Catalyst | Examples, Definition, & Facts | Britannica
WEBCatalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. Enzymes are naturally occurring catalysts responsible for many essential biochemical reactions. In general, catalytic action is a chemical reaction between the catalyst and a reactant.
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catalyst noun - Definition, pictures, pronunciation and usage notes
WEBcatalyst (for something) a person or thing that causes a change. I see my role as being a catalyst for change. The riots were later seen as the catalyst for the new political developments.
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CATALYST | definition in the Cambridge Learner’s Dictionary
WEBAdd to word list. someone or something that causes change: Recent riots and suicides have acted as a catalyst for change in the prison system. a substance that makes a chemical …
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CATALYST definition and meaning | Collins English Dictionary
WEB2 days ago · A catalyst is an agent or compound that is added to a process to make a chemical reaction happen more quickly. The catalyst can increase the reaction rate of the steam and can participate in the secondary reactions. The packing can also act as a catalyst to enhance desired chemical transformations.
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Catalyst Definition & Meaning | Britannica Dictionary
WEB[count] 1. technical : a substance that causes a chemical reaction to happen more quickly. 2. : a person or event that quickly causes change or action. The bombing attack was the catalyst for war. She was proud to be a catalyst for reform in the government.
