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Definition of Sinus

Noun: sinus  sI-nus

  1. An abnormal passage leading from a suppurating cavity to the body surface
    - fistula
     
  2. Any of various air-filled cavities especially in the bones of the skull
     
  3. A wide channel containing blood; does not have the coating of an ordinary blood vessel
    - venous sinus

See also:
sinuousnesses
sinuses

Anagrams containing the word sinus

snisu ssinu ussin nussi inuss