bio·​iden·​ti·​cal ˌbī-ō-ī-ˈden-ti-kəl How to pronounce bioidentical (audio)
: having the same molecular structure as a substance produced in the body
bioidentical estrogens

Example Sentences

Recent Examples on the Web Key ingredients include Bulgarian roses and bioidentical CoQ10 and Vitamin C ester. Alesandra Dubin, Travel + Leisure, 1 Feb. 2023 The Eye Contact's combination of strengthening peptides and bioidentical collagen deeply hydrate and restore skin. Sara Klausing, Men's Health, 13 Nov. 2022 Estradiol, the bioidentical major human estrogen, does predispose a person to clotting, but even so, what happened to you still doesn’t sound like a clot. Dr. Keith Roach, oregonlive, 12 Aug. 2022 NuLife Institute offers a variety of age management services including bioidentical hormone therapy, nutraceutical supplementation, and regenerative treatments. Meggen Harris, Forbes, 16 June 2022 Vagifem is a brand of estradiol, the bioidentical hormone that a premenopausal adult woman’s ovary makes. Dr. Keith Roach, oregonlive, 15 Mar. 2022 Others, like myself, search for Chinese herbs or bioidentical hormonal creams that feel less invasive, with mixed results. Outside Online, 12 Nov. 2021 And their products are required to be bioidentical or chemical copies of existing and already approved products. Rita Numerof, Forbes, 27 Jan. 2022 The bioidentical formula stimulates your own cells to create plump, youthful skin by penetrating deep into the dermis where cells are energized and renewal occurs. Joseph Deacetis, Forbes, 2 Nov. 2021 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'bioidentical.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1997, in the meaning defined above

Time Traveler
The first known use of bioidentical was in 1997

Dictionary Entries Near bioidentical

Cite this Entry

“Bioidentical.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

Medical Definition


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