'paleencephalon' definitions:

Definition of 'paleencephalon'

(from WordNet)
noun
The more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex [syn: paleencephalon, paleoencephalon, palaeencephalon]

Definition of 'paleencephalon'

From: GCIDE
  • paleencephalon \paleencephalon\ n. The more primitive parts of the brain phylogenetically; it includes most structures other than the cerebral cortex.
  • Syn: paleoencephalon, palaeoencephalon. [WordNet 1.5]