venous sinus

/ˌvinəs ˌsaɪnəs/

Other forms: venous sinuses

Definitions of venous sinus

1. noun

   a wide channel containing blood; does not have the coating of an ordinary blood vessel
   synonyms: sinus

   types:

   cavernous sinus, sinus cavernosus

   either of a pair of large venous sinuses in the cranial cavity

   coronary sinus, sinus coronarius

   a short sinus receiving most of the veins of the heart; empties into the right atrium

   sigmoid sinus, sinus sigmoideus

   an S-shaped dural sinus on the temporal and occipital bones

   sinus rectus, straight sinus, tentorial sinus

   an unpaired sinus of the dura mater

   sinus transversus, transverse sinus

   a paired dural sinus; terminates in the sigmoid sinus

   type of:

   canal, channel, duct, epithelial duct

   a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance