syndactyly

syndactyly /sindak″təlē/ [Gk, syn + daktylos, finger] , a congenital anomaly characterized by the fusion of the fingers or toes. It varies in degree of severity from incomplete webbing of the skin of two digits to complete union of digits and fusion of the bones and nails. Also called syndactylia, syndactylism.syndactyl, syndactylous, adj.

Mild syndactyly of the fingers (Courtesy Dr. Joseph Imbriglia, Allegheny General Hospital)