Definition of peroxisome in English:


Line breaks: per|oxi|some
Pronunciation: /pəˈrɒksɪsəʊm


  • A small organelle present in the cytoplasm of many cells, which contains the reducing enzyme catalase and usually some oxidases.
    More example sentences
    • The contributing enzymes are localized in three different organelles, chloroplasts, peroxisomes, and mitochondria.
    • These receptors were originally discovered as proteins activated by agents that stimulate proliferation of peroxisomes in rat liver.
    • We need to know more about the other enzymes in the lantern peroxisomes.



Pronunciation: /-ˈsəʊm(ə)l/
More example sentences
  • Catalase, a well-known peroxisomal marker enzyme, was also included in this work.
  • This family includes receptors for steroid hormones, thyroid hormones, hormonal forms of vitamin A and D, and peroxisomal activators.
  • The other two proteins identified, Fox2 and Ams1, are peroxisomal and vacuolar enzymes, respectively.


1960s: from peroxide + -some3.

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