reactant
🇺🇸
/riˈæktənt/
🇬🇧
/riˈæktənt/
A substance that participates in a chemical reaction and undergoes a change.
In the chemical reaction, water is formed when hydrogen and oxygen, the reactants, are combined.
化学反応において、水は水素と酸素、反応物質が結合すると形成されます。