Definition of rebreather
: an apparatus with face mask and gas supply forming a closed system from which one can breathe as long as the concentrations of oxygen and carbon dioxide remain within tolerable limits
Start your free trial today and get unlimited access to America's largest dictionary, with:
- More than 250,000 words that aren't in our free dictionary
- Expanded definitions, etymologies, and usage notes
- Advanced search features
- Ad free!
Origin and Etymology of rebreather
re- + breathe + -er
Seen and Heard
What made you want to look up rebreather? Please tell us where you read or heard it (including the quote, if possible).