vas

/væs/

Other forms: vases; vasa

Definitions of vas

1. noun

   a tube in which a body fluid circulates
   synonyms: vessel

   types:

   blood vessel

   a vessel in which blood circulates

   arteria, arterial blood vessel, artery

   a blood vessel that carries blood from the heart to the body

   ductus arteriosus

   a blood vessel in a fetus that bypasses pulmonary circulation by connecting the pulmonary artery directly to the ascending aorta; normally closes at birth

   vasa vasorum

   any small blood vessel ramifying on the outside of a major artery or vein

   vein, vena, venous blood vessel

   a blood vessel that carries blood from the capillaries toward the heart

   capillary, capillary vessel

   any of the minute blood vessels connecting arterioles with venules

   type of:

   tube, tube-shaped structure

   (anatomy) any hollow cylindrical body structure