[ awr-thoh-muh-lek-yuh-ler ]
/ ˌɔr θoʊ məˈlɛk yə lər /


being or pertaining to the treatment of disease by increasing, decreasing, or otherwise controlling the intake of natural substances, especially vitamins.Compare megavitamin(def 1).

Origin of orthomolecular

1965–70; ortho- + molecular, referring to “the provision of the optimum molecular environment for the mind,” according to term's originator, Linus Pauling
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for orthomolecular

[ ôr′thō-mə-lĕkyə-lər ]


Of, relating to, or being a theory holding that mental diseases or abnormalities result from various chemical imbalances or deficiencies and can be cured by restoring proper levels of chemical substances, such as vitamins and minerals, in the body.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.