Catalyst Definition & Meaning - Merriam-Webster
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.
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.
CATALYST | English meaning - Cambridge Dictionary
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 …
CATALYST Definition & Meaning | Dictionary.com
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.
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 …
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.
What Is a Catalyst? Understand Catalysis - Science Notes and …
WebSep 21, 2022 · In chemistry and biology, a catalyst is a substance the increases the rate of a chemical reaction without being consumed by it. Catalysis is the process of speeding up a reaction using a catalyst. The word “catalyst” comes from the Greek word kataluein, which means to loosen or untie.
17.6: Catalysts and Catalysis - Chemistry LibreTexts
WebNov 13, 2022 · What are catalysts, and how do they work in terms altering the parameters of a reaction? Describe the similarities and differences between the three principal classes of catalysts.
Basics of Catalysts - Chemistry LibreTexts
WebJun 30, 2023 · Catalysis. Basics of Catalysts. Expand/collapse global location. Basics of Catalysts. Page ID. Discussion Questions. What are chemical absorptions and how do they promote chemical reactions? What types of chemisorption lead to the poisoning of a catalyst? How transition metals are chosen as catalysts? What are syngases and how …
CATALYST | definition in the Cambridge Learner’s Dictionary
Webnoun [ C ] uk / ˈkæt ə lɪst / us. Add 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 …
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