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

• peripatetical
• peripateticism
• peripateticisms
• peripatetics
• Peripatus
• Peripatuses
• peripeteia
• peripeteian
• peripeteias
• peripetia
• peripetian
• peripetias
• peripety
• peripheral
• peripheral device
• peripheral devices
• peripheralities
• peripherality
• peripherals
• peripheral unit
• peripheral units
• peripheric
• peripherical
• peripheries
• periphery