fornix

fornix definition - medical

for·nix (fôrˈnĭks)

noun pl. for·ni·ces (-nĭ-sēzˌ)
  1. An arch-shaped structure, especially the arch-shaped roof of an anatomical space.
  2. The compact bundle of white fiber by which the hippocampus of each cerebral hemisphere projects to the opposite hippocampus and to the septum, the anterior nucleus of the thalamus, and the mamillary body.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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