C1 noun /riˈæktənt/
reactant
प्रतिक्रियामें भाग लेने वाला पदार्थ
Meaning
A substance that takes part in and undergoes change during a chemical reaction.
Example
Oxygen is a reactant in the process of combustion.
ऑक्सीजन दहन प्रक्रिया में एक प्रतिक्रिया-घटक है।