CATALYST

catalyst

(noun) something that causes an important event to happen; “the invasion acted as a catalyst to unite the country”

catalyst, accelerator

(noun) (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected

Source: WordNet® 3.1

Etymology

Noun

catalyst (plural catalysts)

(chemistry) A substance that increases the rate of a chemical reaction without being consumed in the process.

Someone or something that encourages progress or change.

(literature) An inciting incident that sets the successive conflict into motion.

(automotive) A catalytic converter.

Synonyms

• (Someone or something that encourages progress or change): stimulus, straw that stirs the drink

Antonyms

• (something that encourages change): inhibitor

• (something that enhances or accelerates): dampener

Source: Wiktionary

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