Share this entry

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

Definition of peroxisome in English:

noun

Biology
A small organelle present in the cytoplasm of many cells, which contains the reducing enzyme catalase and usually some oxidases.
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.

Derivatives

peroxisomal

1
Pronunciation: /pərɒksɪˈsəʊm(ə)l/
adjective
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.

Origin

1960s: from peroxide + -some3.

Definition of peroxisome in:

Share this entry

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources