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Medical Term:


Pronunciation: re'jun


  1. An often arbitrarily limited portion of the surface of the body.
  2. A portion of the body having a special nervous or vascular supply, or a part of an organ having a special function.

Synonym(s): regioTA

[L. regio]

See Also: space, zone

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.