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