noun Immunology.
the molecular arrangement of amino acids unique to the antigen-binding site of a particular antibody.

1969; back formation from idiotypic or idiotypy, on the model of allotypy; see idio-, allotype

idiotypic [id-ee-uh-tip-ik] , adjective
idiotypy [id-ee-uh-tahy-pee] , noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Medical Dictionary

idiotype id·i·o·type (ĭd'ē-ə-tīp')
A determinant that confers on an immunoglobulin molecule an antigenic individuality that is analogous to the individuality of the molecule's antibody activity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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