[ id-ee-uh-tahyp ]
/ ˈɪd i əˌtaɪp /

noun Immunology.

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

Origin of idiotype

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

Related forms

id·i·o·typ·ic [id-ee-uh-tip-ik] /ˌɪd i əˈtɪp ɪk/, adjectiveid·i·o·typ·y [id-ee-uh-tahy-pee] /ˈɪd i əˌtaɪ pi/, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for idiotype

Medicine definitions for idiotype


[ ĭdē-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.