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posteroexternal in Medicine

posteroexternal

(pŏs′tə-rō-ĭk-stûrnəl)
adj.
  1. In back and to the outer side.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.