bio·​iden·​ti·​cal | \ ˌbī-ō-ī-ˈden-ti-kəl How to pronounce bioidentical (audio) \

Definition of bioidentical

: having the same molecular structure as a substance produced in the body bioidentical estrogens

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Examples of bioidentical in a Sentence

Recent Examples on the Web Bioidentical hormones are carefully derived from suitable plants and designed to mimic the function and structure of natural human hormones, which is why they are called bioidentical. Dr. Tom Macek,, "Debunking myths about menopause | Opinion," 8 Oct. 2020 Testosterone is used for bioidentical hormone replacement therapy. Laurel Andrews, Anchorage Daily News, "Should Alaska’s naturopaths be allowed to prescribe medicine?," 21 Apr. 2018 Switch to nonhormonal birth control; if your doctor agrees, try bioidentical hormones for menopausal migraines. Alexis Reliford, Good Housekeeping, "12 Sneaky Things That Might Be Causing That Headache," 27 Sep. 2017 Such therapies include bioidentical hormones, which are identical in molecular structure to the hormones women make in their bodies. Betsy Mckay, WSJ, "New CDC Chief Lays Out Priorities as Agency Faces Cuts," 16 July 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bioidentical.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bioidentical

1997, in the meaning defined above

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Time Traveler for bioidentical

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The first known use of bioidentical was in 1997

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Statistics for bioidentical

Last Updated

16 Oct 2020

Cite this Entry

“Bioidentical.” Dictionary, Merriam-Webster, Accessed 29 Nov. 2020.

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More Definitions for bioidentical


bio·​iden·​ti·​cal | \ ˌbī-ō-ī-ˈden-ti-kəl \

Medical Definition of bioidentical

: having the same molecular structure as a substance produced in the body bioidentical hormones

Other Words from bioidentical

bioidentical noun
Proponents of bioidenticals suggest that they are safer than other hormones because they mimic a woman's hormones. — Roni Caryn Rabin, The New York Times, 28 Aug. 2007

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