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Word of the Day Tuesday, June 9, 2026

reactant

/rɪˈæktənt/ noun · British & US
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What does reactant mean?

noun

A substance that takes part in a chemical reaction, especially one that is consumed in the process. A person or thing that reacts to a particular situation or stimulus.

Example

"The reactant in the chemical reaction was a highly flammable gas."

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

Synonyms for reactant

Antonyms of reactant

Rhymes with reactant

Etymologically related