hydroxyapatite

noun

hy·​droxy·​ap·​a·​tite hī-ˌdräk-sē-ˈa-pə-ˌtīt How to pronounce hydroxyapatite (audio)
variants or hydroxylapatite
: a complex phosphate of calcium Ca5(PO4)3OH that occurs as a mineral and is the chief structural element of vertebrate bone

Examples of hydroxyapatite in a Sentence

Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
May Support Your Bones Calcium and phosphorus are the major components of the compound hydroxyapatite, which provides strength and structure to your bones. Lauren O'Connor, Ms, Health, 29 Sep. 2024 The primary component of enamel is the mineral calcium phosphate, arranged in a crystalline (small crystal) structure known as hydroxyapatite. Anna Giorgi, Verywell Health, 31 July 2024 Tooth enamel, the hard protective outer layer, is naturally about 96 percent hydroxyapatite. Sarah Zhang, The Atlantic, 23 July 2024 Become a Subscriber The scientific case for hydroxyapatite toothpaste is actually quite simple: Composed of calcium and phosphate, hydroxyapatite is the very mineral that primarily makes up our bones and teeth. Sarah Zhang, The Atlantic, 23 July 2024 Khan says these folks should switch to a natural toothpaste containing hydroxyapatite and wash their face after brushing to wipe off any excess paste. Popular Science, 14 Mar. 2024 The former has hydroxyapatite—which researchers claim is more effective than fluoride at preventing tooth sensitivity—to help rebuild the surface of your teeth, while the latter was formulated to inhibit bacteria and remineralize teeth. Bryan Hood, Robb Report, 29 Feb. 2024 The main active ingredient in these tablets is fluoride, but they’re also packed with other cavity-fighting ingredients, including hydroxyapatite and xylitol. Lacey Muinos, Health, 11 Dec. 2023 Infused with a refreshing mint flavor, these strips are packed with hydroxyapatite, a mineral that protects and maintains healthy enamel and protects against cavities. Sarah Han, Allure, 27 Nov. 2023

Word History

First Known Use

1912, in the meaning defined above

Time Traveler
The first known use of hydroxyapatite was in 1912

Dictionary Entries Near hydroxyapatite

Cite this Entry

“Hydroxyapatite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydroxyapatite. Accessed 15 Nov. 2024.

Medical Definition

hydroxyapatite

noun
hy·​droxy·​ap·​a·​tite hī-ˌdräk-sē-ˈap-ə-ˌtīt How to pronounce hydroxyapatite (audio)
variants or hydroxylapatite
: a complex phosphate of calcium Ca5(PO4)3OH that occurs as a mineral and is the chief structural element of vertebrate bone

More from Merriam-Webster on hydroxyapatite

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!