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CATALYST Definition Meaning - Merriam-Webster The 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
Catalyst | Examples, Definition, Facts | Britannica 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
Catalysis - Wikipedia In general, chemical reactions occur faster in the presence of a catalyst because the catalyst provides an alternative reaction mechanism (reaction pathway) having a lower activation energy than the noncatalyzed mechanism
Catalyst - Definition, Meaning Synonyms | Vocabulary. com A catalyst is an event or person causing a change Getting kicked out of your parents' house might be a catalyst for becoming more independent The noun catalyst is something or someone that causes a change and is derived from the Greek word katalύein, meaning "to dissolve "
CATALYST Definition Meaning | Dictionary. com something that causes activity between two or more persons or forces without itself being affected a person or thing that precipitates an event or change His imprisonment by the government served as the catalyst that helped transform social unrest into revolution
What Is a Catalyst and How Does It Work? - sciencenewstoday. org 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
DOE Explains. . . Catalysts | Department of Energy A catalyst is a substance that speeds up a chemical reaction, or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction