malrotation

[ măl′rō-tāshən ]

n.

Failure of normal rotation of all or part of an organ or system, such as the intestinal tract or spinal cord, during embryonic development.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.