Medical Dictionary

prebreathe

transitive verb pre·breathe \ (ˈ)prē-ˈbrēt͟h \

medical Definition of prebreathe

prebreathed; prebreathing
: 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

prebreathing

play \-iŋ\ noun

Seen and Heard

What made you want to look up prebreathe? 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!

Love words? Need even more definitions?

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