air sinus

air sinus
air sinus n an air-containing cavity (as a paranasal sinus and esp. a maxillary sinus) in bone

* * *

an air-containing space within the substance of a bone.

Medical dictionary. 2011.

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  • maxillary air sinus — n MAXILLARY SINUS …   Medical dictionary

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  • sinus — [sī′nəs] n. [L, a bend, curve, fold] 1. a bend or curve 2. any cavity or hollow formed by a bending or curving 3. Anat. Zool. any of various cavities, hollows, or passages; esp., a) any of the air cavities in the skull opening into the nasal… …   English World dictionary

  • Sinus paranasal — Pour les articles homonymes, voir Sinus. Sinus paranasal Sinus paranasaux …   Wikipédia en Français

  • sinus — sinuslike, adj. /suy neuhs/, n., pl. sinuses. 1. a curve; bend. 2. a curving part or recess. 3. Anat. a. any of various cavities, recesses, or passages, as a hollow in a bone, or a reservoir or channel for venous blood. b. one of the hollow… …   Universalium

  • sinus squeeze — ▪ pathology also called  Aerosinusitis, or Barosinusitis,         pain, inflammation, and possible bleeding of the membranes lining the sinus cavities in the head, caused by a difference between the pressure inside the sinuses and that outside.… …   Universalium

  • sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary

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