acephalogasteria
(ā-sĕf′ə-lō-gă-stîr′ē-ə, ə-sĕf′-)- Congenital absence of the head, chest, and abdomen in the parasitic member of conjoined twins.
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The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.