[1] : WordNet (r) 2.0

venous sinus
     n : a wide channel containing blood; does not have the coating
         of an ordinary blood vessel syn: sinus
see also:
sinus 

Venous Sinus >> V Words
Venous Sinus, definition of term: Venous Sinus
venous+sinus_pag1.html

Venous >> V Words
Venous, definition of term: Venous
venous_pag1.html

Sinus >> S Words
Sinus, definition of term: Sinus
sinus_pag1.html