prebreathe

transitive verb
pre·​breathe | \(ˈ)prē-ˈbrēt͟h \
prebreathed; prebreathing

Medical Definition of prebreathe 

: to breathe (pure oxygen) to purge the blood of nitrogen content in preparation for an activity (as a space walk) that involves exposure to a significant change in pressure which might otherwise cause decompression sickness

Learn More about prebreathe

Share prebreathe

Comments on prebreathe

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

WORD OF THE DAY

a trusted follower

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
True or False

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

TAKE THE QUIZ
Citation

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!