tyrosine

[tahy-ruh-seen, -sin, tir-uh-] Origin

ty·ro·sine

[tahy-ruh-seen, -sin, tir-uh-]
noun Biochemistry.
a crystalline amino acid, HOC6H4CH2CH(NH2)COOH, abundant in ripe cheese, that acts as a precursor of norepinephrine and dopamine. Abbreviation: Tyr; Symbol: Y

Origin:
1855–60; < Greek tȳrós cheese + -ine2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source Link To tyrosine

00:10

00:09

00:08

00:07

00:06

00:05

00:04

00:03

00:02

00:01

Tyrosine is always a great word to know.
So is citrulline. Does it mean:
an intermediate compound in the urea cycle
any of several isomers of an amino acid found in proteins and produced synthetically
Collins
World English Dictionary
tyrosine (ˈtaɪrəˌsiːn, -sɪn, ˈtɪrə-)
 
n
an aromatic nonessential amino acid; a component of proteins. It is a metabolic precursor of thyroxine, the pigment melanin, and other biologically important compounds
 
[C19: from Greek turos cheese + -ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

tyrosine
amino acid, 1857, coined 1846 by Ger. chemist Baron von Justus Liebig (1802-73) from Gk. tyros "cheese" + chemical suffix -ine. So called because it was easily obtained from cheese.
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

tyrosine ty·ro·sine (tī'rə-sēn')
n.
Abbr. Tyr
A white crystalline amino acid that is derived from the hydrolysis of proteins such as casein and is a precursor of epinephrine, thyroxine, and melanin.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
tyrosine   (tī'rə-sēn')  Pronunciation Key 
A nonessential amino acid. Chemical formula: C9H11NO3. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Dictionary.com, LLC. Copyright © 2012. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature