nasal cavity
US /ˈneɪ.zəl ˈkæv.ɪ.ti/
UK /ˈneɪ.zəl ˈkæv.ɪ.ti/

1.
cavité nasale
a large, air-filled space above and behind the nose in the middle of the face. It is lined with a mucous membrane that helps to warm and humidify the air we breathe, and it contains olfactory receptors responsible for the sense of smell.
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Air enters the body through the nasal cavity.
L'air entre dans le corps par la cavité nasale.
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Inflammation of the nasal cavity can cause a stuffy nose.
L'inflammation de la cavité nasale peut provoquer un nez bouché.