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semisulcus in Medicine

semisulcus

(sĕm′ē-sŭlkəs, sĕm′ī-)
n.
  1. A slight groove on the edge of a bone or other structure that forms a complete sulcus when united with a similar groove on the corresponding adjoining structure.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.