Origin and Etymology of metacarpus
First Known Use: 1676
Medical Definition of metacarpus
: the part of the human hand or the front foot in quadrupeds between the carpus and the phalanges that contains five more or less elongated bones when all the digits are present (as in humans) but is modified in many animals by the loss or reduction of some bones or the fusing of adjacent bones
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Britannica.com: Encyclopedia article about metacarpus
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