venous sinus

n.

A cavity at the caudal end of the embryonic cardiac tube in which veins from the intra- and extraembryonic circulatory arcs unite. In adults it develops into the sinuses of the venae cavae.

Words nearby venous sinus

venous hum, venous hyperemia, venous insufficiency, venous pulse, venous return, venous sinus, venous sinus of sclera, venous sphygmograph, venous star, venovenostomy, vent