Reactant
/riˈæktˈænt/
Listen pronunciation
Definition
(noun) Any of the participants present at the start of a chemical reaction, specifically one that is consumed during the reaction.
Sentence Examples
A reactant is a substance that takes part in a chemical reaction.
The lab checked the purity of every reactant before the test.
CEFR Practice Quiz
The ____ was added slowly to the solution to prevent the temperature from rising too quickly.