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antioxidant - 4 dictionary results

an⋅ti⋅ox⋅i⋅dant

[an-tee-ok-si-duhnt, an-tahy-]
–noun
1. Chemistry. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc.
2. Biochemistry. an enzyme or other organic substance, as vitamin E or beta carotene, that is capable of counteracting the damaging effects of oxidation in animal tissues.
–adjective
3. Chemistry. of or pertaining to an antioxidant.

Origin:
1925–30; anti- + oxidant ( oxid(ize) + -ant )
an·ti·ox·i·dant   (ān'tē-ŏk'sĭ-dənt, ān'tī-)   
n.  
  1. A chemical compound or substance that inhibits oxidation.
  2. A substance, such as vitamin E, vitamin C, or beta carotene, thought to protect body cells from the damaging effects of oxidation.

Main Entry: an·ti·ox·i·dant
Pronunciation: "ant-E-'äk-s&d-&nt, "an-"tI-
Function: noun
: 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 deleteriouseffects of free radicals —antioxidant adjective
antioxidant   (ān'tē-ŏk'sĭ-dənt, ān'tī-)  Pronunciation Key 
A chemical compound or substance that inhibits oxidation. Certain vitamins, such as vitamin E, are antioxidants and may protect body cells from damage caused by the oxidative effects of free radicals.
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