Dictionary.com
definitions
  • synonyms
great foramen in Medicine

great foramen

n.
  1. The large orifice in the base of the skull through which the spinal cord passes to the cranial cavity and becomes continuous with the medulla oblongata.foramen magnum
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.