ectrosyndactyly

[ ĕk′trō-sĭn-dăktə-lē ]

n.

A congenital deformity marked by the absence of one or more digits and by the fusion of others.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.