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threonine

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thre⋅o⋅nine

[three-uh-neen, -nin]
–noun Biochemistry.
an essential amino acid, CH3CHOHCH(NH2)COOH, obtained by the hydrolysis of proteins. Abbreviation: Thr; Symbol: T

Origin:
1925–30; threon- (alter. of Gk erythrón, neut. of erythrós red; see erythro- ) + -ine 2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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thre·o·nine   (thrē'ə-nēn', -nĭn)   
n.  A colorless crystalline amino acid, C4H9NO3, that is obtained from the hydrolysis of protein and is an essential component of human nutrition.

[Probably from threose, a kind of sugar (alteration of erythrose : erythro- + -ose2) + -ine2.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: thre·o·nine
Pronunciation: 'thrE-&-"nEn
Function: noun
: a colorless crystalline essential amino acidC4H9NO3 that is found in various proteins—abbreviaton Thr
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

threonine thre·o·nine (thrē'ə-nēn', -nĭn)
n.
Abbr. Thr
A colorless crystalline amino acid that is derived from the hydrolysis of protein and is an essential component of human nutrition.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
threonine   (thrē'ə-nēn')  Pronunciation Key 
An essential amino acid. Chemical formula: C4H9NO3. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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