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Pronunciation: ra'mus, ra'mi


  1. One of the primary divisions of a nerve or blood vessel. Arterial and nerve branches are also given under the major nerve or artery.
  2. A part of an irregularly shaped bone (less slender than a “process”) that forms an angle with the main body (ramus of mandible).
  3. One of the primary divisions of a cerebral sulcus.

See: artery, nerve

Synonym(s): branch


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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.