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horseradish peroxidase
horse·rad·ish per·ox·i·dase
Definitions related to horseradish peroxidase:
  • An enzyme isolated from horseradish which is able to act as an antigen. It is frequently used as a histochemical tracer for light and electron microscopy. Its antigenicity has permitted its use as a combined antigen and marker in experimental immunology.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • NonEC; a peroxidase isolated from the horseradish plant and used in a variety of light and electron microscopic staining procedures; phagocytosed HRP has extraordinary intracellular survival time and can be used to trace intercellular gap connections, neuronal transport, and vesicle flux.
    CRISP Thesaurus
    National Institutes of Health, 2006
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