peroxidase

[ puh-rok-si-deys, -deyz ]
/ pəˈrɒk sɪˌdeɪs, -ˌdeɪz /

noun Biochemistry.

any of a class of oxidoreductase enzymes that catalyze the oxidation of a compound by the decomposition of hydrogen peroxide or an organic peroxide.

Origin of peroxidase

First recorded in 1900–05; peroxide + -ase

Example sentences from the Web for peroxidase

  • Esculin will not luminesce with peroxidase and H2O2, but pyrogallol or gallic acid will.

    The Nature of Animal Light |E. Newton Harvey
  • The plant extract loses the power to cause such luminescence on boiling and the peroxidase will not dialyze.

    The Nature of Animal Light |E. Newton Harvey

British Dictionary definitions for peroxidase

peroxidase
/ (pəˈrɒksɪˌdeɪs, -ˌdeɪz) /

noun

any of a group of enzymes that catalyse the oxidation of a compound by the decomposition of hydrogen peroxide or an organic peroxide. They generally consist of a protein combined with haem

Medical definitions for peroxidase

peroxidase
[ pə-rŏksĭ-dās′, -dāz′ ]

n.

Any of a group of enzymes that occur especially in plant cells and catalyze the oxidation of a substance by a peroxide.