Shortening of reduction and oxidation.

• IPA^(key): /ˈɹiːdɒks/, /ˈɹɛdɒks/

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redox (not comparable)

1. (chemistry) Of or relating to any reaction in which oxidation and reduction occur simultaneously.

redox (uncountable)

1. (rare) (chemistry) A reaction in which an oxidation and a reduction occur simultaneously; a reaction in which electrons are transferred.
   • 2001, Robert M. Fenner, The conscientious marine aquarist‎^[1]:

     Can you have too much redox? Definitely.

   • 2009, James E. Brady, Fred Senese, Chemistry: The Study of Matter and Its Changes‎^[2]:

     This will tell us whether redox is occurring, and if so, what is oxidized and reduced.

redox (third-person singular simple present redoxes, present participle redoxing, simple past and past participle redoxed)

1. (transitive) To subject to a redox reaction.

• reducing agent
• oxidizing agent

• EXORD, XORed, doxer, exord

redox (invariable)

1. redox

• “redox”, in Diccionario de la lengua española [Dictionary of the Spanish Language] (in Spanish), online version 23.8.1, Royal Spanish Academy [Spanish: Real Academia Española], 15 December 2025