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acephalorrhachia in Medicine

acephalorrhachia

(ā-sĕf′ə-lō-rākē-ə, ə-sĕf′-)
n.
  1. Congenital absence of the head and spinal column.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.