Thesaurus

catalyst

noun

Synonyms & Antonyms of catalyst

See the Dictionary Definition 

Keep scrolling for more

Learn More about catalyst

Time Traveler for catalyst

Time Traveler

The first known use of catalyst was in 1902

See more words from the same year

Cite this Entry

“Catalyst.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/catalyst. Accessed 27 May. 2020.

Keep scrolling for more

More from Merriam-Webster on catalyst

Dictionary: Definition of catalyst

Medical Dictionary: Definition of catalyst

Spanish Central: Translation of catalyst

Nglish: Translation of catalyst for Spanish Speakers

Britannica English: Translation of catalyst for Arabic Speakers

Britannica.com: Encyclopedia article about catalyst

Comments on catalyst

What made you want to look up catalyst? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

Obscure Shapes

  • a pile of three dimensional shapes in green
  • Something that is ooid is shaped like:
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!