polydactylism

polydactyly

[pol-ee-dak-tuh-lee]
noun Pathology.
the condition of being polydactyl.
Also, polydactylism.


Origin:
1885–90; polydactyl + -y3

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Medical Dictionary

polydactyly pol·y·dac·ty·ly (pŏl'ē-dāk'tə-lē) or pol·y·dac·tyl·ism (-tə-lĭz'əm)
n.
A condition characterized by the presence of more than five digits on a hand or foot. Also called hyperdactyly.

The American Heritage® Stedman's Medical Dictionary
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