confluence of sinuses

noun
con·​flu·​ence of sinuses | \ ˈkän-ˌflü-ən(t)s-, kən-ˈflü- How to pronounce confluence of sinuses (audio) \

Medical Definition of confluence of sinuses

: the junction of several of the sinuses of the dura mater in the internal occipital region

called also confluence of the sinuses, torcular Herophili