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

• be as good as one's word
• be a sheet in the wind's eye
• beast
• beast fable
• beast fables
• beasthood
• beasthoods
• beastie
• beasties
• beastily
• beastings
• beastlier
• beastliest
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• beastliness
• beastlinesses
• beastly
• beastly-head
• beastly-heads
• beast of burden
• beast of prey
• beasts
• beasts of burden
• beasts of chase
• beasts of warren