antioxidant

antioxidant
A substance that protects cells from the damage caused by free radicals (unstable molecules made by the process of oxidation during normal metabolism). Free radicals may play a part in cancer, heart disease, stroke, and other diseases of aging. Antioxidants include beta-carotene, lycopene, vitamins A, C, and E, and other natural and manufactured substances.

English dictionary of cancer terms . 2015.

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  • antioxidant — ANTIOXIDÁNT, antioxidanţi, s.m. Substanţă care împiedică sau întârzie acţiunea de oxidare; antioxigen. [pr.: ti o – pl. şi: (n.) antioxidante] – Din fr. antioxydant. Trimis de ana zecheru, 25.02.2004. Sursa: DEX 98  ANTIOXIDÁNT s. (chim.)… …   Dicționar Român

  • antioxidant — 1920 (n.); 1932 (adj.), from ANTI (Cf. anti ) + OXIDANT (Cf. oxidant) …   Etymology dictionary

  • antioxidant — ► NOUN ▪ a substance that counteracts oxidation …   English terms dictionary

  • antioxidant — [an΄tī äks′i dənt, an΄tēäks′i dənt] n. a substance that slows down the oxidation of hydrocarbons, oils, fats, etc. and thus helps to check deterioration: antioxidants are added to many products, esp. foods and soaps adj. serving to check… …   English World dictionary

  • Antioxidant — Model of the antioxidant metabolite glutathione. The yellow sphere is the redox active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms,… …   Wikipedia

  • antioxidant — UK [ˌæntɪˈɒksɪd(ə)nt] / US [ˌæntaɪˈɑksɪdənt] / US [ˌæntɪˈɑksɪdənt] noun [countable] Word forms antioxidant : singular antioxidant plural antioxidants 1) chemistry a substance that prevents oxygen from combining with other substances and damaging… …   English dictionary

  • Antioxidant — antioksidantas statusas T sritis ekologija ir aplinkotyra apibrėžtis Gamtinė ar sintetinė medžiaga, lėtinanti arba stabdanti oksidaciją. atitikmenys: angl. antioxidant vok. Antioxidant, n rus. антиокислитель, m …   Ekologijos terminų aiškinamasis žodynas

  • antioxidant — antioksidantas statusas T sritis ekologija ir aplinkotyra apibrėžtis Gamtinė ar sintetinė medžiaga, lėtinanti arba stabdanti oksidaciją. atitikmenys: angl. antioxidant vok. Antioxidant, n rus. антиокислитель, m …   Ekologijos terminų aiškinamasis žodynas

  • antioxidant — noun Date: 1926 a substance (as beta carotene or vitamin C) that inhibits oxidation or reactions promoted by oxygen, peroxides, or free radicals • antioxidant adjective …   New Collegiate Dictionary

  • antioxidant — /an tee ok si deuhnt, an tuy /, n. 1. Chem. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc. 2. Biochem. an enzyme or other organic substance, as vitamin E or… …   Universalium

  • Antioxidant — Any substance that reduces oxidative damage (damage due to oxygen) such as that caused by free radicals. Free radicals are highly reactive chemicals that attack molecules by capturing electrons and thus modifying chemical structures. Well known… …   Medical dictionary

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