alpha-tocopherol

noun al·pha-to·coph·er·ol \ -tō-ˈkä-fə-ˌrȯl , -ˌrōl \
Updated on: 28 Feb 2018

Definition of alpha-tocopherol

: the predominant form of vitamin E C29H50O2 that is essential to human nutrition
  • … the vitamin E sold as a dietary supplement contains primarily alpha-tocopherol.
  • —Janet Raloff
Note: Alpha-tocopherol is a potent antioxidant and the most biologically active form of vitamin E. Because alpha-tocopherol is the form of vitamin E most essential to biological functioning, it is often used synonymously with vitamin E.

First Known Use of alpha-tocopherol

1936


Medical Dictionary

alpha-tocopherol

noun al·pha-to·coph·er·ol \ ˌal-fə-tō-ˈkäf-ə-ˌrȯl, -ˌrōl \

medical Definition of alpha-tocopherol

: a tocopherol C29H50O2 with high vitamin E potency

Seen and Heard

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

Love words? Need even more definitions?

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

WORD OF THE DAY

unwilling or reluctant

Get Word of the Day daily email!

Test Your Vocabulary

Odd Habits and Quirks Quiz

  • image1926873504
  • Which of the following best describes an easily irritated person?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

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!