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Definition of antioxidant
: a substance (such as beta-carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals
antioxidant
adjectiveRead the Latest from M-W
Recent Examples of antioxidant from the Web
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The germ is loaded with protein, B vitamins, several minerals, antioxidants, phytochemicals (biologically active compounds in plants) and essential fatty acids.
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Antioxidants such as NAC (or n-acetylcysteine) are used in high doses by the military to protect the brain after blast-injury concussions.
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Corn is rich in vitamin C, magnesium and B vitamins as well as the antioxidants zeaxanthin and lutein, which promote eye health.
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The formula contains chemical filters to ward off UV rays, along with a blend of anti-aging antioxidants to neutralize free radicals that damage our cells.
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Colorescience Sunforgettable Brush-on Sunscreen SPF 50, $64; dermstore.com SkinMedica Anti-Aging Treatment Packed with antioxidants and Vitamins C and E, this treatment works to fight fine lines while battling the sun’s rays.
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Additionally, paleo foods are rich in antioxidants, which generate less inflammation and free radicals than sugar/carbs.
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Plums also are a good source of vitamins A and C as well as several antioxidants.
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During their time in the ocean — about two years, usually — the salmon spend time eating phytoplankton and krill, filled with carotenoids containing antioxidants and pigments that give their flesh its characteristic hue.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'antioxidant'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use of antioxidant
1919
ANTIOXIDANT Defined for English Language Learners
antioxidant
playDefinition of antioxidant for English Language Learners
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: a substance that is added to food and other products to prevent harmful chemical reactions in which oxygen is combined with other substances
Medical Dictionary
antioxidant
playMedical Definition of antioxidant
: any of various substances (as beta-carotene, vitamin C, and alpha-tocopherol) that inhibit oxidation or reactions promoted by oxygen and peroxides and that include many held to protect the living body from the deleterious effects of free radicals
antioxidant
adjectiveLearn More about antioxidant
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Britannica English: Translation of antioxidant for Arabic speakers Britannica.com: Encyclopedia article about antioxidant
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