Definitions

1. adjective

relating to the nose and mouth, especially in the context of breathing or respiration.

“The oronasal route is often used for administering anesthesia.”

2. noun

a route of respiration that involves both the nose and the mouth.

“The patient was put on an oronasal ventilator to assist with her breathing.”

3. adverb

involving or relating to both the nose and the mouth, especially in the context of breathing or respiration.

“The patient breathed oronasally through the mask.”