Meaning : An abnormal passage leading from a suppurating cavity to the body surface.
Synonyms : fistula
Meaning : Any of various air-filled cavities especially in the bones of the skull.
Meaning : A wide channel containing blood. Does not have the coating of an ordinary blood vessel.
Synonyms : venous sinus
Sinus ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Sinus ka matlab kya hota hai?