ectrogeny

[ĕk-trŏjə-nē]

n.

Congenital absence of a body part.

Related formsec′tro•genic (-trə-jĕnĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.