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polypeptide

[pol-ee-pep-tahyd, -tid] /ˌpɒl iˈpɛp taɪd, -tɪd/
noun, Biochemistry
1.
a chain of amino acids linked together by peptide bonds and having a molecular weight of up to about 10,000.
Origin
1900-1905
1900-05; poly- + peptide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for polypeptides

polypeptide

/ˌpɒlɪˈpɛptaɪd/
noun
1.
any of a group of natural or synthetic polymers made up of amino acids chemically linked together; this class includes the proteins See also peptide
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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Word Origin and History for polypeptides

polypeptide

n.

peptide built from a large number of amino acids, 1903, from German polypeptid; see poly- + peptide.

Online Etymology Dictionary, © 2010 Douglas Harper
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polypeptides in Medicine

polypeptide pol·y·pep·tide (pŏl'ē-pěp'tīd')
n.
A peptide containing many amino acids, typically between 10 and 100.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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polypeptides in Science
polypeptide
  (pŏl'ē-pěp'tīd')   
A peptide, such as a small protein, containing many molecules of amino acids, typically between 10 and 100.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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