Meaning of VENOUS SINUS

WordNet Dictionary
	Definition:		[n]  a wide channel containing blood; does not have the coating of an ordinary blood vessel
	Synonyms:		sinus
	See Also:		canal, cavernous sinus, channel, coronary sinus, duct, epithelial duct, sigmoid sinus, sinus cavernosus, sinus coronarius, sinus rectus, sinus sigmoideus, sinus transversus, straight sinus, tentorial sinus, transverse sinus