The meaning of CATALYST is a person or thing that provokes or speeds significant change or action. How to use catalyst in a sentence. Word History of Catalyst.

CATALYST definition: a substance that causes or accelerates a chemical reaction without itself being affected. See examples of catalyst used in a sentence.

A catalyst is also a substance that causes or speeds a chemical reaction without itself being changed.

The noun catalyst is something or someone that causes a change and is derived from the Greek word katalύein, meaning "to dissolve." It can be somewhat ordinary, like when moving to a warmer climate …

Catalyst, 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.

Definition of catalyst noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

One that precipitates a process or event, especially without being involved in or changed by the consequences: "A free press ... has remained ... a vital catalyst to an informed and responsible …

May 8, 2025 · A catalyst is a substance that speeds up a chemical reaction without itself undergoing any permanent chemical change. In other words, it’s not consumed in the reaction—it merely facilitates it.

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 …

Sep 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 …