• synonyms


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

Origin of idiotype

1969; back formation from idiotypic or idiotypy, on the model of allotypy; see idio-, allotype
Related formsid·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
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for idiotype

Historical Examples

  • Idiotype: a specimen named by the author after comparison with the type, but not also a topotype.

    Explanation of Terms Used in Entomology

    John. B. Smith

idiotype in Medicine


  1. A determinant that confers on an immunoglobulin molecule an antigenic individuality that is analogous to the individuality of the molecule's antibody activity.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.