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

• penetrates
• penetrating
• penetratingly
• penetration
• penetration agent
• penetration agents
• penetrations
• penetrative
• penetratively
• penetrativeness
• penetrativenesses
• penetrator
• penetrators
• penetrometer
• penetrometers
• pen-feather
• pen-feathered
• pen-feathers
• penfold
• penfolds
• pen friend
• pen friends
• penful
• penfuls
• penguin