A substance or agent that opposes or counteracts reduction; something that prevents a reducing agent from functioning or reverses its effects.
From anti- + reducer (one that reduces, from Latin reducere, to lead back). Technical chemistry terminology.
Antireducers in metallurgy prevent unwanted reduction reactions, which is how blacksmiths historically controlled how iron ore transformed—temperature and atmosphere control are really about managing what antireduces your desired process.
Complete word intelligence in one call. Free tier — 50 lookups/day.