ty·​ros·​i·​nase | \ tə-ˈrä-sə-ˌnās How to pronounce tyrosinase (audio) , tī-, -ˌnāz \

Definition of tyrosinase

: 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 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 Kojic acid, blocks tyrosinase, which is needed to produce melanin in the skin, therefore preventing pigment formation. Dori Price, Good Housekeeping, 23 Mar. 2021 Caviar Eye Extraordinaire is enriched with the breakthrough illuminating molecule Lumidose - the most potent inhibitor of tyrosinase, the enzyme responsible for the formation of melanin. Joseph Deacetis, Forbes, 1 Mar. 2021 And compounds extracted from brown algae have been shown to inhibit tyrosinase in animal studies. Sarah Jacoby, SELF, 13 Aug. 2019 There’s also some evidence to suggest that some types of algae can be used to manage hyperpigmentation through a particular mechanism: One major step in the body’s production of melanin depends on tyrosinase, an enzyme. Sarah Jacoby, SELF, 13 Aug. 2019 Arbutin works by directly inhibiting the activity of tyrosinase enzymes central to the production of melanin. Allure, 17 Aug. 2018 Ingredients such as kojic acid (in the Bliss serum, right) and mulberry (found in Olay's overnight mask, here) are called tyrosinase inhibitors. Krista Bennett Demaio, Cosmopolitan, 2 Jan. 2015

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'tyrosinase.' 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 tyrosinase

1896, in the meaning defined above

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The first known use of tyrosinase was in 1896

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Cite this Entry

“Tyrosinase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tyrosinase. Accessed 18 Oct. 2021.

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More Definitions for tyrosinase


ty·​ros·​i·​nase | \ tə-ˈräs-ə-ˌnās, tī-, -ˌnāz How to pronounce tyrosinase (audio) \

Medical Definition of tyrosinase

: an enzyme that promotes the oxidation of phenols (as tyrosine) and is widespread in plants and animals

More from Merriam-Webster on tyrosinase

Britannica.com: Encyclopedia article about tyrosinase


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