shock antigen

shock antigen
an antigen capable of eliciting anaphylactic shock in a sensitized animal.

Medical dictionary. 2011.

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  • anaphylactic shock — n. (Med.) a severe form of physiological shock, often having a fatal outcome, caused by an extreme immunological reaction to antigens. It is a severe form of {anaphylaxis[2]}, and is characterized by smooth muscle contraction and capillary… …   The Collaborative International Dictionary of English

  • anaphylactic shock — noun a severe and rapid and sometimes fatal hypersensitivity reaction to a substance (especially a vaccine or penicillin or shellfish or insect venom) to which the organism has become sensitized by previous exposure • Hypernyms: ↑anaphylaxis * *… …   Useful english dictionary

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