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[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 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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orthomolecular in Medicine

orthomolecular or·tho·mo·lec·u·lar (ôr'thō-mə-lěk'yə-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.
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