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sinus
 
Noun sinus has 3 senses
  1. fistula, sinus - an abnormal passage leading from a suppurating cavity to the body surface
    --1 is a kind of passage, passageway
  2. sinus - any of various air-filled cavities especially in the bones of the skull
    --2 is a kind of     cavity, bodily cavity, cavum
    --2 has particulars:
     ethmoid sinus, ethmoidal sinus, sinus ethmoidales; frontal sinus; maxillary sinus; paranasal sinus, sinus paranasales, nasal sinus
  3. venous sinus, sinus - a wide channel containing blood; does not have the coating of an ordinary blood vessel
    --3 is a kind of duct, epithelial duct, canal, channel
    --3 has particulars:
     cavernous sinus, sinus cavernosus; coronary sinus, sinus coronarius; sigmoid sinus, sinus sigmoideus; straight sinus, tentorial sinus, sinus rectus; transverse sinus, sinus transversus
sintram sinuate sinuation sinuosas sinuosity sinuous sinuously sinuousness sinus sinus cavernosus sinus coronarius sinus ethmoidales sinus headache sinus paranasales sinus rectus sinus sigmoideus sinus transversus

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