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hap·ten(hăp′tĕn′) also hap·tene (-tēn′)
A small molecule that reacts with a specific antibody but does not induce an immune response unless bound to a larger molecule, usually a protein.
[German : Greek haptein, to fasten + German -en, noun suffix (from Greek -ēnē, -ene).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Physiology) immunol relating to a hapten
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014