megavitamin

[ meg-uh-vahy-tuh-min; British also meg-uh-vit-uh-min ]
/ ˈmɛg əˌvaɪ tə mɪn; British also ˈmɛg əˌvɪt ə mɪn /

adjective

of, relating to, or using very large amounts of vitamins: megavitamin therapy.Compare orthomolecular.

noun

megavitamins, doses of vitamins much larger than the recommended dietary allowances.

QUIZZES

FOR POSTERITY’S SAKE, TAKE THIS WORD OF THE DAY QUIZ!

Are words your bailiwick? Take the latest quiz on the words from July 6 to July 12 to find out.
Question 1 of 7
bailiwick

Origin of megavitamin

First recorded in 1965–70; mega- + vitamin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Medical definitions for megavitamin

megavitamin
[ mĕgə-vī′tə-mĭn ]

n.

A dose of a vitamin greatly exceeding the amount required to maintain health.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.