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Showing results for catalyst. Search instead for cytolys.
Definitions

catalyst

[kat-l-ist] / ˈkæt l ɪst /
NOUN
something which incites activity
Synonyms
STRONGEST
impetus incentive motivation stimulant
STRONG
adjuvant agitator enzyme goad impulse incendiary incitation incitement reactant reactionary spur synergist
WEAK
radical stimulus spark plug wave maker
Antonyms
STRONGEST
block hindrance
WEAK
blockage preventer prevention

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.

I like to mention there is no reason to catch a falling knife until a catalyst presents itself.

From Barron's • Apr. 8, 2026

Another catalyst will come from first-quarter earnings, which will get a boost from a recently disclosed sale of one of its quantum computers.

From Barron's • Apr. 8, 2026

Some analysts think this is finally the year that Apple will unveil a foldable iPhone — and the impending launch has been hailed as a potential catalyst for the stock.

From MarketWatch • Apr. 7, 2026

Marl-Brock had been telling others and that was "the catalyst" for what happened later.

From BBC • Apr. 4, 2026

Three hundred and fifty miles to the west, there was no need to find a catalyst for the zeal that could be created by a winning high school football team.

From "Friday Night Lights: A Town, A Team, And A Dream" by H.G. Bissinger