catalyst
noun
a substance that causes or accelerates a chemical reaction without itself being affected.
catalysts
-
pluralof catalyst.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Tanaka's team addressed this problem by building on its previous work using metal catalysts to carry out chemical reactions in living systems.
From Science Daily ● Nov. 4, 2026
Here’s what’s I’m watching this morning: A week chockablock with enough catalysts that we might finally get some answers about the direction of the market by the end of it.
From The Wall Street Journal ● Oct. 26, 2026
Moderna and Revolution Medicines have upcoming catalysts that could help sustain their gains, even as biotech stocks retreat.
From Barron's ● Oct. 16, 2026
Fans of “The Good Wife” or “The Good Fight” are familiar with how the Kings turned emerging tech issues — particularly ones involving Google, Amazon or Facebook — into narrative catalysts for cases.
From Los Angeles Times ● Oct. 16, 2026
Hearing about Rosa Parks and her protest showed me that there is hope for me and all the students in Ms. G’s classes to truly be catalysts for change.
From "The Freedom Writers Diary" by The Freedom Writers
