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Medical Dictionary

princeps pollicis

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noun prin·ceps pol·li·cis \ˈprin-ˌseps-ˈpäl-ə-səs\

Medical Definition of princeps pollicis

  1. :  a branch of the radial artery that passes along the ulnar side of the first metacarpal and divides into branches running along the palmar side of the thumb




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to lessen in amount, effect, or force

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