superoxide dismutase

noun superoxide dis·mut·ase \ -dis-ˈmyü-ˌtās , -ˌtāz \

Definition of superoxide dismutase

: a metal-containing antioxidant enzyme that reduces harmful free radicals of oxygen formed during normal metabolic cell processes to oxygen and hydrogen peroxide

Recent Examples of superoxide dismutase from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'superoxide dismutase.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of superoxide dismutase

dismutation (simultaneous oxidation and reduction) + -ase


Medical Dictionary

superoxide dismutase

noun superoxide dis·mu·tase \ -ˈdis-myü-ˌtās \

medical Definition of superoxide dismutase

: a metal-containing antioxidant enzyme that reduces potentially harmful free radicals of oxygen formed during normal metabolic cell processes to oxygen and hydrogen peroxide abbreviation SOD

Learn More about superoxide dismutase


Seen and Heard

What made you want to look up superoxide dismutase? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

excessive admiration or flattery

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet-pasta-spelling-help
  • Which is the correct spelling?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!