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proline

[proh-leen, -lin] /ˈproʊ lin, -lɪn/
noun, Biochemistry
1.
an alcohol-soluble amino acid, C 4 H 9 NHCOOH, occurring in high concentration in collagen. Symbol: P.
Abbreviation: Pro;
Origin
1900-1905
1900-05; alteration of pyrrolidine
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for prolines

proline

/ˈprəʊliːn; -lɪn/
noun
1.
a nonessential amino acid that occurs in protein
Word Origin
C20: from pyrrolidine
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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prolines in Medicine

proline pro·line (prō'lēn')
n.
Abbr. Pro
An amino acid that is found in most proteins and is a major constituent of collagen.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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prolines in Science
proline
  (prō'lēn')   
A nonessential amino acid. Chemical formula: C5H9NO2. See more at amino acid.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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