Share this entry
catalase Syllabification: cat·a·lase
Pronunciation: /ˈkatlˌās/ /-ˌāz/

Definition of catalase in English:


An enzyme that catalyzes the reduction of hydrogen peroxide.
Example sentences
  • In addition, the human body produces its own antioxidants that take the form of enzymes, including catalase, glutathione peroxidase, and superoxide dismutase.
  • Many of these enzymes, such as catalase and glutathione peroxidase, are constitutively active and protect the lungs against everyday insults.
  • When the enzyme catalase is added to the hydrogen peroxide solution, the activation energy is lowered even further to 4 kJ / mol.


Early 20th century: from catalysis + -ase.

Definition of catalase 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.

Subscribe to remove ads and access premium resources