SINCE 1828
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
Other Words from prebreathe
prebreathing
\ -iŋ
\
noun
\
noun
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Merriam-Webster unabridged
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