the condition of being polydactyl.
Origin of polydactyly
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
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.