third ventricle
n.
A narrow, vertically oriented cavity in the midplane below the corpus callosum that communicates with each of the lateral ventricles through the interventricular foramen.
Words nearby third ventricle
third reich,
third republic,
third sector,
third space,
third stream,
third ventricle,
third ventriculostomy,
third way,
third world,
third worlder,
third-class