SkyfireDict

sinus   (TTS Sound)

The noun sinus has 3 senses

• fistula, sinus -- (an abnormal passage leading from a suppurating cavity to the body surface)


• sinus -- (any of various air-filled cavities especially in the bones of the skull)


• venous sinus, sinus -- (a wide channel containing blood; does not have the coating of an ordinary blood vessel)