sphenoparietal sinus

noun
sphe·no·pa·ri·etal sinus | \ˌsfē-nō-pə-ˈrī-ət-ᵊl- \

Medical Definition of sphenoparietal sinus 

: a venous sinus of the dura mater on each side of the cranium arising at a meningeal vein near the apex of the lesser wing of the sphenoid bone and draining into the anterior part of the cavernous sinus

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