\ ˈäk-(ˌ)sō How to pronounce oxo (audio) \

Definition of oxo

 (Entry 1 of 2)

: containing oxygen

Definition of oxo- (Entry 2 of 2)

— see ox-

Examples of oxo in a Sentence

Recent Examples on the Web: Adjective Two of the biodegradable bags were oxo-biodegradable. Laura Parker, National Geographic, "Biodegradable shopping bags buried for three years still work," 28 Apr. 2019

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

First Known Use of oxo


circa 1926, in the meaning defined above

History and Etymology for oxo



Keep scrolling for more

Learn More about oxo

Time Traveler for oxo

Time Traveler

The first known use of oxo was circa 1926

See more words from the same year

Statistics for oxo

Cite this Entry

“Oxo.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxo. Accessed 25 Feb. 2020.

Keep scrolling for more

More Definitions for oxo

\ ˈäk-(ˌ)sō How to pronounce oxo (audio) \

Medical Definition of oxo

: containing oxygen

Comments on oxo

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


See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

More Confusing Words—Quiz

  • cats on impossible timber
  • The magician ______ moved the selected card to the top of the deck.
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

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

Love words? Need even more definitions?

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