or pol·y·dac·tyl·ism


noun Pathology.

the condition of being polydactyl.

Origin of polydactyly

First recorded in 1885–90; polydactyl + -y3
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polydactyly in Medicine




A condition characterized by the presence of more than five digits on a hand or foot.hyperdactyly
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.