Wiktionary
n. (context anatomy English) A large air-filled space above and behind the nose in the middle of the face.
WordNet
n. either of the two cavities lying between the floor of the cranium and the roof of the mouth and extending from the face to the pharynx
Wikipedia
The nasal cavity (or nasal fossa) is a large air filled space above and behind the nose in the middle of the face. Each cavity is the continuation of one of the two nostrils.
Usage examples of "nasal cavity".
Though he lacked the faith to truly enjoy the pain of the neural grub's detachment, he feigned a smile of satisfaction as the thing tore its dendrites from his optic chiasma and exited through his nasal cavity.
She was sexually turned on, was all: as if Schoenmaker had located and flipped a secret switch or clitoris somewhere inside her nasal cavity.
However, before he could reach his family, he felt his teeth begin to hum, a hum that stretched through his skull and nasal cavity.
Vomit blocked his nasal cavity and flooded in and out of his mouth like driftwood carried on the tide.
Inside his head, a patch of fire began to eat away at the floor of his nasal cavity.
His sword rasped through the thin bones of the nasal cavity and into the vault that would have contained the brain of a living being.
Either of those cavernous hairy nostrils could be forcibly modified to accept the steel bit, which would (according to Levon's calculation) extrude well beyond the nasal cavity and into the brainpan.
They could have run a catheter straight up your nasal cavity into your brain.