sinus

any of the hollow spaces in the bones of the skull, especially behind the nose and between the eyes

cavidad sinusoidal, seno (nasal)

Collocations sinus infection · sinus pain

• She suffers from chronic sinus problems.

  Ella sufre de problemas crónicos en los senos nasales.

a note that is a minor second below the tonic of a scale, or a chord built on this note

sistema de afinación, nota disminuida

Collocations sinus tone · sinus harmony

• The composition uses a sinus chord.

  La composición utiliza un acorde de sistema de afinación.