met·en·ceph·a·lon 
(mĕt′ĕn-sĕfə-lŏn′)
(mĕt′ĕn-sĕfə-lŏn′)n. pl. met·en·ceph·a·la (-lə)
1. The anterior part of the embryonic hindbrain, which gives rise to the cerebellum and pons.
2. The cerebellum and pons of the adult brain.
met′en·ce·phalic (-sə-fălĭk) adj.