nostril
US /ˈnɑː.strəl/
UK /ˈnɑː.strəl/

1.
narice
either of two external openings of the nasal cavity in vertebrates that admit air to the lungs and smells to the olfactory nerves
:
•
He flared his nostrils in anger.
Ha dilatato le narici per la rabbia.
•
The horse snorted, expelling air from its wide nostrils.
Il cavallo sbuffò, espellendo aria dalle sue ampie narici.