IPA: /rɪˈdʌktənt/
KK: /rɪˈdʌktənt/
A substance that causes another substance to be reduced in a chemical reaction, often by donating electrons.
In the reaction, hydrogen acts as a reductant, helping to convert metal oxides into pure metals.
Reductant → It is formed from "re-" (meaning again) and "ducere" (meaning to lead). The word refers to a substance that leads to a reduction in another substance, often in a chemical reaction.
Think of something that 'leads again' to a reduction — 're-' means again, and 'ducere' means to lead, which helps you remember that a reductant causes a decrease in another substance.