mes·en·ceph·a·lon /ˌmɛˌzɛnˈsɛfəˌlɑn, ˌmi, zṇ, ˌsɛn, sṇ, lən/
  中腦
  mes·en·ceph·a·lon /ˌmɛzˌɛnˈsɛfəˌlɑn, ˌmɛzṇ, ˌmɪz, ˌmɪs, ˌmɛs, lən/ 名詞
  中腦
  Mes·en·ceph·a·lon n.  Anat. The middle segment of the brain; the midbrain.  Sometimes abbreviated to mesen. See Brain.
  ◄ ►
  mesencephalon
       n : the middle portion of the brain [syn: midbrain]