We found one dictionary that defines the word open-circuit breathing system:

Medicine (1 matching dictionary)

1. open-circuit breathing system: Medical dictionary

▸ Words similar to open-circuit breathing system ▸ Usage examples for open-circuit breathing system ▸ Idioms related to open-circuit breathing system ▸ Wikipedia articles (New!) ▸ Words that often appear near open-circuit breathing system ▸ Rhymes of open-circuit breathing system ▸ Invented words related to open-circuit breathing system