A metallic implant used in surgical treatment of bone fractures. SEE ALSO: nail. [O.E. pinn, fr. L. pinna, feather]
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patient information network; personal identification number; product identification number; prostatic intraepithelial neoplasia
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PIN abbr prostatic intraepithelial neoplasia
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(pin) 1. a long slender metal rod for the fixation of the ends of fractured bones. 2. a peg or dowel by means of which an artificial crown is fixed to the root of a tooth.Medical dictionary. 2011.