Noun
of Sinus
An opening; a hollow; a bending.
A bay of the sea; a recess in the shore.
A cavity; a depression.
A cavity in a bone or other part, either closed or with a narrow opening.
A dilated vessel or canal.
A narrow, elongated cavity, in which pus is collected; an elongated abscess with only a small orifice.
A depression between adjoining lobes.
Source: Webster's dictionaryIf you asked her (Margaret Thatcher) about Sinai, she would probably think it was the plural for sinus. Jonathan Aitken
A contrast-enhanced MRV (ATECO) scan has a high detection rate for abnormal transverse sinus stenoses. citation These stenoses can be more adequately identified and assessed with catheter cerebral venography and manometry. Source: Internet
A persistent sinus tract may remain as a vestigial remnant of the tubular development of the thyroid gland. Source: Internet
Assuming you have no issues with your septum or other points of sinus breathing pathways, this is actually the ideal form for breathing while engaging in strenuous physical activity. Source: Internet
Coarse particles are filtered by the upper airways and can cause eye and sinus irritation as well as sore throat and coughing. Source: Internet
Although, when I have continuous sinus headaches for days, I remind myself that I am fortunate not to suffer from migraines. Source: Internet