- a compound containing two or more amino acids in which the carboxyl group of one acid is linked to the amino group of the other.
Origin of peptide
1905–10; pept(ic) + -ide
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for peptide
He has devoted his life to replicating that peptide and when he puts it back in the patient, their cancer goes away.My War on Cancer
November 8, 2009
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
Word Origin and History for peptide
1906, from German peptid; see peptone + -ide, probably indicating a derivative.
Online Etymology Dictionary, © 2010 Douglas Harper
- Any of various natural or synthetic compounds containing two or more amino acids linked by the carboxyl group of one amino acid and the amino group of another.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A chemical compound that is composed of a chain of two or more amino acids and is usually smaller than a protein. The amino acids can be alike or different. Many hormones and antibiotics are peptides.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.