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Word of the Day Tuesday, June 9, 2026

activator

/æk.tɪˈveɪ.tər/ noun · British & US
Valid in UKValid in US
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What does activator mean?

noun

A substance or agent that activates or sets off a chemical reaction, or a person or thing that causes something to happen or be done.

Example

"The activator in the paint caused it to dry quickly."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for activator

Antonyms of activator

Rhymes with activator

Etymologically related