[al-uh-neen, -nin]
noun Biochemistry.
any of several isomers of a colorless, crystalline, water-soluble amino acid, CH 3 CH(NH 2 )COOH, found in many proteins and produced synthetically: used chiefly in biochemical research. Abbreviation: Ala; Symbol: A

1860–65; al(dehyde) + -an- (arbitrarily inserted) + -ine2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
alanine (ˈæləˌniːn, -ˌnaɪn)
a nonessential aliphatic amino acid that occurs in many proteins
[C19: from German Alanin, from al(dehyde) + -an- (euphonic infix) + -in-ine²]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

alanine al·a·nine (āl'ə-nēn')
Abbr. Ala
A crystalline amino acid that is a constituent of many proteins.

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
alanine   (āl'ə-nēn')  Pronunciation Key 
A nonessential amino acid. Chemical formula: C3H7NO2. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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