Medical Dictionary

prebreathe

play
transitive verb pre·breathe \(ˈ)prē-ˈbrēth\

Medical Definition of prebreathe

prebreathed

;

prebreathing

  1. :  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

\-iŋ\play noun

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