acephaly
(ā-sĕf′ə-lē, ə-sĕf′-)
- Congenital absence of the head.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for acephaly
Historical Examples
Such a monstrosity is known as Acephaly in modern nomenclature.