antioxidant

noun
an·​ti·​ox·​i·​dant | \ ˌan-tē-ˈäk-sə-dənt How to pronounce antioxidant (audio) , ˌan-ˌtī-\

Definition of antioxidant

: a substance (such as beta-carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals

Keep scrolling for more

Other Words from antioxidant

antioxidant adjective

Examples of antioxidant in a Sentence

Recent Examples on the Web

According to a 2009 study, there are two unique types of antioxidants in cranberries — anthocyanidin and proanthocyanidin — which are thought to be what repels the bacteria in the bladder. Julie Mazziotta, PEOPLE.com, "Do Cranberries REALLY Help with Urinary Tract Infections? An OB-GYN Sets the Record Straight," 4 June 2019 Try soaking a washcloth in cool green tea or skim milk, which contain additional antioxidants. Caroline Picard, Good Housekeeping, "Why Your Sunburn Itches — And How to Stop It," 19 Apr. 2019 Chang explains rosehip oil has a high concentration of fatty acids, like linoleic and oleic acid, which have antioxidant, moisturizing, and skin protective effects. Audrey Noble, Harper's BAZAAR, "The Beauty Benefits of Rosehip Oil," 2 May 2019 So that’s really good at naturally giving color and flush to the skin, getting up antioxidants, helping with lymphatic drainage, helping to improve your sleep patterns. Roxanne Adamiyatt, Town & Country, "What Does a Pre-Oscars Facial Really Entail?," 23 Feb. 2019 These antioxidants, also known as carotenoids, help to fight off oxidative stress in your body and may protect against chronic disease. Alex Van Buren, Health.com, "Why Basil Is So Good for You—Plus 14 Ways to Use More of It All Summer Long," 14 May 2018 One reason direct physical contact with the ground might have beneficial physiological effects is the earth's surface has a negative charge and is constantly generating electrons that could neutralize free radicals, acting as antioxidants. Carrie Dennett, chicagotribune.com, "Could walking barefoot on grass improve your health? Some science suggests it can.," 11 July 2018 Use antioxidants and take omega-3, -9, magnesium, glutathione, and probiotic supplements. Ashley Weatherford, The Cut, "The Skin-Care Routine Behind TV’s Most Fashionable Assassin," 30 May 2018 As natural antioxidants, these minerals prevent cell death that can lead to the disease, as well as the paralysis and heart failure associated with it. Elaina Zachos, National Geographic, "Exclusive: Fatal Disease Likely Found in Lion Cubs for First Time," 11 Apr. 2018

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.

See More

First Known Use of antioxidant

1919, in the meaning defined above

Keep scrolling for more

Learn More about antioxidant

Statistics for antioxidant

Last Updated

13 Jun 2019

Look-up Popularity

Time Traveler for antioxidant

The first known use of antioxidant was in 1919

See more words from the same year

Keep scrolling for more

More Definitions for antioxidant

antioxidant

noun

English Language Learners Definition of antioxidant

: a substance that is added to food and other products to prevent harmful chemical reactions in which oxygen is combined with other substances

antioxidant

noun
an·​ti·​ox·​i·​dant | \ ˌant-ē-ˈäk-səd-ənt, ˌan-ˌtī- How to pronounce antioxidant (audio) \

Medical 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

Other Words from antioxidant

antioxidant adjective

More from Merriam-Webster on antioxidant

Britannica English: Translation of antioxidant for Arabic Speakers

Britannica.com: Encyclopedia article about antioxidant

Comments on antioxidant

What made you want to look up antioxidant? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to move with exaggerated bouncy motions

Get Word of the Day daily email!

Test Your Vocabulary

Finance Words Quiz

  • a-piggy-bank
  • The etymology of mortgage is related most closely to which two words?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!