tyrosine

noun

ty·​ro·​sine ˈtī-rə-ˌsēn How to pronounce tyrosine (audio)
: a phenolic amino acid C9H11NO3 that is a precursor of several important substances (such as epinephrine and melanin)

Examples of tyrosine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
There are currently numerous tyrosine kinase inhibitors approved by the U.S. Food and Drug Administration (FDA). Linda Carroll, TIME, 5 Sep. 2024 One other type of drug, called a tyrosine kinase inhibitor, blocks an enzyme that’s needed for tumor cells to grow and divide. Linda Carroll, TIME, 5 Sep. 2024 Supplementing with low-phenylalanine or phenylalanine-free amino acid supplements with tyrosine is recommended. Lindsey Desoto, Rd, Ld, Health, 10 Aug. 2024 For example, tyrosine is needed for the production of thyroid hormones. Fiona Embleton, Glamour, 9 Aug. 2024 See all Example Sentences for tyrosine 

Word History

Etymology

International Scientific Vocabulary, irregular from Greek tyros cheese — more at butter

First Known Use

1857, in the meaning defined above

Time Traveler
The first known use of tyrosine was in 1857

Dictionary Entries Near tyrosine

Cite this Entry

“Tyrosine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/tyrosine. Accessed 22 Dec. 2024.

Medical Definition

tyrosine

noun
ty·​ro·​sine ˈtī-rə-ˌsēn How to pronounce tyrosine (audio)
: a phenolic amino acid C9H11NO3 that is a precursor of several important substances (as epinephrine and melanin)
abbreviation Tyr

More from Merriam-Webster on tyrosine

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!