circular sinus
Definition:
- dural venous formation that surrounds the hypophysis, composed of right and left cavernous sinuses and the intercavernous sinuses;
- a venous sinus at the periphery of the placenta;
Synonym(s): scleral venous sinus
Synonym(s): circulus venosus ridleyi, Ridley circle
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.

