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 (tō-kŏf′ə-rôl′, -rōl′)
Any of a group of closely related fat-soluble alcohols that are forms of vitamin E and that differ from the tocotrienols in having saturated side chains.

[Greek tokos, offspring, childbirth; see tek- in Indo-European roots + Greek pherein, to bear, carry; see bher- in Indo-European roots + -ol (tocopherols being so called because they were discovered after it was observed that rats did not reproduce when fed a diet lacking these compounds).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Biochemistry) biochem any of a group of fat-soluble alcohols that occur in wheat-germ oil, watercress, lettuce, egg yolk, etc. They are thought to be necessary for healthy human reproduction. Also called: vitamin E
[C20: from toco-, from Greek tokos offspring (see tocology) + -pher-, from pherein to bear + -ol1]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(toʊˈkɒf əˌrɔl, -ˌrɒl)

any of several oils that constitute vitamin E.
[1936; < Greek tóko(s) child, childbirth + phér(ein) to carry, bear1 + -ol1]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tocopherol - a fat-soluble vitamin that is essential for normal reproductiontocopherol - a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body
alpha-tocopheral - a potent form of vitamin E obtained from germ oils or by synthesis
antioxidant - substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides
fat-soluble vitamin - any vitamin that is soluble in fats
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.


n tocoferol m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
First trimester plasma tocopherols are associated with risk of miscarriage in rural Bangladesh.
The common synthetic phenolic antioxidants are butylated hydroxyanisole (BHA), BHT, propyl gallate (PG), and tertiary butylhydroquinone (TBHQ) [16-17], and natural antioxidants include a wide variety of compunds such as tocopherols, ascorbic acid, carotins, and flavonoids; green tea extracts, pomegrante hull, etc.
Vitamin E is an essential, fat-soluble, antioxidant vitamin that occurs in two basic classes: tocopherols and tocotrienols.
Thus, supplementing with mixed tocopherols would in most cases be preferable to using pure alpha- or pure gamma-tocopherol.
Unique among the plant kingdom, annatto produces only tocotrienols, whereas all other known sources of this vitamin E nutrient, such as palm and rice, deliver mixtures of tocopherols and tocotrienols, typically containing anywhere from 25-50% alpha-tocopherol.
(Sapotaceae) has many nutritional, cosmetic, and therapeutic properties thanks to its richness in unsaturated fatty acids (UFA) and bioactive substances such as tocopherols and phytosterols [1].
Tocopherols as antioxidants maybe promising agents in reducing the risk of CAD.
First, refined commercial sunflower oil was examined for its composition of fatty acids and tocopherols. Then, oil samples were prepared with Fe+2 and Cu+2 ions (0, 0.15 and 0.3 mg/kg) and ascorbyl palmitate (0, 200 and 400 mg/kg).
Vitamin A, vitamin D, vitamin E, ram, seminal plasma, spermatological characteristics, sperm motility, abnormal spermatozoid, scrotal circumference, tocopherols
Vitamin E vitamers, such as the tocopherols, play a role in the prevention of some age-related diseases.
In addition to their favorable profile of fatty acids, walnuts also contain several other bioactive compounds such as phytosterols, tocopherols, and tocotrienols (PEREIRA et al., 2008).
The term vitamin E is now considered to be a generic name describing both tocopherols and tocotrienols that are a group of soluble lipid compounds [16].