Catalyst Definition

kătl-ĭst
catalysts
noun
catalysts
A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.
American Heritage
Any substance serving as the agent in catalysis.
Webster's New World
One that precipitates a process or event, especially without being involved in or changed by the consequences.
American Heritage
A person or thing acting as the stimulus in bringing about or hastening a result.
Webster's New World

Someone or something that encourages progress or change.

Economic development and integration are working as a catalyst for peace.
Wiktionary

Other Word Forms of Catalyst

Noun

Singular:
catalyst
Plural:
catalysts

Origin of Catalyst

  • From catalysis +‎ -ist.

    From Wiktionary

  • From catalysis

    From American Heritage Dictionary of the English Language, 5th Edition

Find Similar Words

Find similar words to catalyst using the buttons below.

Words Starting With

Words Ending With

Unscrambles

catalyst