trocar /trōˈkär/

1. A surgical perforator with a three-sided cutting point used for inserting a cannula, to drain off or introduce liquid, etc
2. Sometimes, a cannula

• haircloth
• haircloths
• haircut
• haircuts
• hairdo
• hairdos
• hairdresser
• hairdressers
• hairdressing
• hairdressings
• hairdrier
• hairdryer
• hairdryers
• haired
• hair-eel
• hair-eels
• hair extension
• hair extensions
• hair gel
• hair gels
• hair-grass
• hair grip
• hairgrip
• hair grips
• hairgrips