nucleus fastigii

[fă-stĭjē-ī′, -stījē-]
n.
  1. The most medial of the deep cerebellar nuclei, near the midline in the white matter underneath the vermis of the cerebellar cortex, receiving axons of Purkinje cells and fibers from the vestibular nerve and nuclei.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.