tyrosinase

noun

ty·​ros·​i·​nase tə-ˈrä-sə-ˌnās How to pronounce tyrosinase (audio)
tī-,
-ˌnāz
: a copper-containing enzyme that promotes the oxidation of phenols (such as tyrosine) and is widespread in plants and animals

Examples of tyrosinase in a Sentence

Recent Examples on the Web Essentially, hydroquinone decreases the production of melanin by inhibiting a pigment-producing enzyme called tyrosinase. Taryn Brooke, Allure, 13 Nov. 2023 Wang also mentioned research into melanoma-detecting systems that can check for levels of the enzyme tyrosinase in suspicious skin moles. IEEE Spectrum, 15 Nov. 2019 Besides melianin production, tyrosinase (and hence Tyrp1) is at a key step of catecholamine synthesis. Razib Khan, Discover Magazine, 3 Sep. 2011 Hydroxytyrosol and Vitamin C are antioxidants that lighten dark spots by directly and indirectly inhibiting tyrosinase activity which reduces the production of melanin. Emily Burns, ELLE, 6 Dec. 2022 Naturally, the less tyrosinase produced, the less melanin produced. Janell M. Hickman, SELF, 27 July 2022 On a biological level, hydroquinone works by inhibiting an enzyme called tyrosinase, which aids in the production of melanin, Dr. Cook-Bolden says. Janell M. Hickman, SELF, 27 July 2022 Boasting excellent anti-inflammatory and anti-aging properties, vitamin C is an antioxidant, and a tyrosinase inhibitor. Noel Cody, Essence, 1 July 2021 When incorporated into your complexion regimen properly, hydroquinone decreases the production of melanin by inhibiting tyrosinase, an enzyme needed for melanin production, to decrease the appearance of hyperpigmentation. Devon Abelman, Allure, 14 May 2021

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'tyrosinase.' 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

1896, in the meaning defined above

Time Traveler
The first known use of tyrosinase was in 1896

Dictionary Entries Near tyrosinase

Cite this Entry

“Tyrosinase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tyrosinase. Accessed 24 Jul. 2024.

Medical Definition

tyrosinase

noun
ty·​ros·​i·​nase tə-ˈräs-ə-ˌnās, tī-, -ˌnāz How to pronounce tyrosinase (audio)
: an enzyme that promotes the oxidation of phenols (as tyrosine) and is widespread in plants and animals

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