1. An S-shaped dural sinus on the temporal and occipital bones
   - sigmoid sinus

Type of: sinus, venous sinus

• Trotskyist
• Trotskyite
• trotter
• trotting horse
• trou-de-loup
• troubadour
• trouble
• trouble and strife
• trouble oneself
• trouble spot
• trouble-free
• troubled
• troublemaker
• troubler
• troubleshoot
• troubleshooter
• troublesome
• troublesomeness
• troubling
• troublous
• trough
• trounce
• trouncing
• troupe
• trouper