| hexadactyly |
Hexadactyly is a medical term describing the presence of an extra digit upon the hand or foot, an extra finger or toe. It comes from the Greek words hex (six) and dactylos (finger), although the modern medical term does not refer specifically to whether the extra digit is a finger or toe. Hexadactyly is a relatively common congenital malformation and is the most frequent form of polydactyly, a diagnosis that encompasses all cases of extra digits. ...
출처: en.wikipedia.org/wiki/Hexadactyly
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