reactant

noun
UK: /riˈæktənt/
US: /riˈæktənt/

  1. A substance that changes during a chemical reaction.

    1. The reactant was mixed with the catalyst.
    2. In this experiment, identify the limiting reactant to determine the yield of the reaction.

  2. A chemical substance that is consumed to create a product in a chemical reaction.

    1. Oxygen is a key reactant in combustion.
    2. The chemist carefully measured each reactant before starting the synthesis of the new compound.

Synonyms

reagent component

Frequently Asked Questions

The word "reactant" in English means: A substance that changes during a chemical reaction., A chemical substance that is consumed to create a product in a chemical reaction..

The phonetic transcription of "reactant" is /riˈæktənt/ in British English and /riˈæktənt/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "reactant": reagent, component.

Example usage of "reactant": "The reactant was mixed with the catalyst.". More examples on the page.