1. Pertaining to cytologic or histologic elements occurring where they are not normally found. SEE ALSO: xenogeneic. 2. Derived from an animal of a different species, as the serum of a horse is h. for a rabbit. [hetero- + G. logos, ratio, relation]

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het·er·ol·o·gous .het-ə-'räl-ə-gəs adj
1) derived from a different species <\heterologous DNAs> <\heterologous transplants> compare AUTOLOGOUS, HOMOLOGOUS (2a)
2) characterized by cross-reactivity <a \heterologous vaccine protects against pathogenic antigens that cross-react with antibodies induced by antigens in the vaccine>
het·er·ol·o·gous·ly adv

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het·er·ol·o·gous (het″ər-olґə-gəs) [hetero- + Gr. logos due relation, proportion] 1. made up of tissue not normal to the part. 2. xenogeneic. 3. pertaining to antigen and antibody that are not homologous, i.e., the antigen is not the one that elicited the production of the antibody.

Medical dictionary. 2011.

Look at other dictionaries:

  • Heterologous — Het er*ol o*gous, a. [Hetero + Gr. ? proportion.] Characterized by heterology; consisting of different elements, or of like elements in different proportions; different; opposed to homologous; as, heterologous organs. [1913 Webster] {Heterologous …   The Collaborative International Dictionary of English

  • heterologous — [het΄ər äl′ə gəs] adj. [< HETERO + Gr logos, relation, word (see LOGIC) + OUS] 1. consisting of differing elements; not corresponding, as parts of different organisms or of the same organism that are unlike in structure or origin 2. Med. a)… …   English World dictionary

  • Heterologous — In medicine a heterologous transplant means between species or from one species to another .In protein quaternary structure a heterologous interface is a subunit subunit interface which occurs between different sequence regions of the protein… …   Wikipedia

  • heterologous — adjective Etymology: heter + logous (as in homologous) Date: 1893 derived from a different species < heterologous DNAs > < heterologous transplants > • heterologously adverb …   New Collegiate Dictionary

  • heterologous — Derived from the tissues or DNA of a different species. cf autologous, homologous …   Dictionary of molecular biology

  • heterologous — /het euh rol euh geuhs/, adj. 1. Biol. of different origin; pertaining to heterology. 2. Med., Pathol. consisting of dissimilar tissue, as that of another species or that of a tumor. 3. Immunol. pertaining to an antigen that elicits a reaction in …   Universalium

  • heterologous — adjective a) Having different relationships or different elements b) Of, or relating to different species Ant: homologous, autologous …   Wiktionary

  • heterologous —    Refers to segments of DNA derived from different sources …   Forensic science glossary

  • heterologous — adj. of or taken from a different species …   English contemporary dictionary

  • heterologous — [ˌhɛtə rɒləgəs] adjective chiefly Medicine & Biology not homologous. Derivatives heterology noun …   English new terms dictionary

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