punch

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punch

(pŭnch),
An instrument for making a hole or indentation in some solid material or for driving out a foreign body in such material.
[L. pungo, pp. punctus, to stick, to punch]

punch

An instrument for making a small circular hole in material or tissue, esp. the skin.

punch

a metal, rodlike instrument with one pointed or cavitied end and one propulsion end to be pushed hard with the palm of the hand or driven with a hammer in order to drive a hole or to excise a small round piece of tissue.

punch biopsy
a circular piece of skin excised by a hand driven biopsy punch. See also keyes punch.
dental punch
has a slight cavity at the end so that the tooth to be driven will seat into the end and not slip off.
punch graft
see punch graft.