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Medical Definition of Onychograph
1. An instrument for recording the capillary blood pressure as shown by the circulation under the nail. Origin: onycho-+ G. Grapho, to write (05 Mar 2000)
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1. An instrument for recording the capillary blood pressure as shown by the circulation under the nail. Origin: onycho-+ G. Grapho, to write (05 Mar 2000)