isoleucine

[ahy-suh-loo-seen, -sin]

i·so·leu·cine

[ahy-suh-loo-seen, -sin]
noun Biochemistry.
a crystalline amino acid, C6H13O2, occurring in proteins, that is essential to the nutrition of humans and animals. Abbreviation: Ile; Symbol: I

Origin:
1900–05; iso- + leucine
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Isoleucine is always a great word to know.
So is essential amino acid. Does it mean:
any amino acid that is required by an animal for growth cannot be synthesized by the animal's cells
found in many proteins and obtained by the hydrolysis of sericin, the protein constituting silk gum
Collins
World English Dictionary
isoleucine (ˌaɪsəʊˈluːsiːn, -sɪn)
 
n
an essential amino acid that occurs in proteins and is formed by protein hydrolysis

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Medical Dictionary

isoleucine i·so·leu·cine (ī'sə-l&oomacr;'sēn')
n.
Abbr. Ile
An essential amino acid that is isomeric with leucine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
isoleucine   (ī'sə-l'sēn')  Pronunciation Key 
An essential amino acid. Chemical formula: C6H13NO2. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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