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peroxisome

[ puh-rok-suh-sohm ]

noun

, Cell Biology.
  1. a cell organelle containing catalase, peroxidase, and other oxidative enzymes and performing essential metabolic functions, as the decomposition of fatty acids and hydrogen peroxide.

peroxisome

/ pəˈrɒksɪˌsəʊm /

noun

  1. a type of organelle present in most eukaryotic cells that carry out oxidative reactions, such as oxidation of alcohol in the liver

peroxisome

/ pə-rŏk′sĭ-sōm′ /

  1. A cell organelle containing enzymes that catalyze the production and breakdown of hydrogen peroxide.

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Other Words From

  • per·oxi·somal adjective

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Word History and Origins

Origin of peroxisome1

First recorded in 1965–70; perox(ide) + -some 3

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peroxidizeperoxy

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