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.

Origin of megavitamin

First recorded in 1965–70; mega- + vitamin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine 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.