WordNet: sinus

any of various air-filled cavities especially in the bones of the skull

• hypernym bodily cavity, cavity, cavum

• hyponym ethmoid sinus, ethmoidal sinus, sinus ethmoidales

• hyponym frontal sinus

• hyponym maxillary sinus

• hyponym nasal sinus, paranasal sinus, sinus paranasales

sinus

• (suomi) ontelo (synonyymi)