Simple Definition of antioxidant

from our Learner's Dictionary

antioxidant

noun

ˌæntiˈɑːksədənt How to pronounce antioxidant (audio)
plural antioxidants
: a substance that is added to food and other products to prevent harmful chemical reactions in which oxygen is combined with other substances

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“Antioxidant.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/antioxidant. Accessed 5 May. 2026.

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Britannica.com: Encyclopedia article about antioxidant

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