encephalon

noun

Etymology: Learned borrowing from Ancient Greek ἐγκέφαλος (enképhalos, “within the head”), from ἐν (en, “in”) + κεφαλή (kephalḗ, “head”).

1. The area of central nervous system that includes all higher nervous centers, enclosed within the skull and continuous with the spinal cord; synonym of brain.

   “Meronyms: prosencephalon, telencephalon, diencephalon; mesencephalon; rhombencephalon, metencephalon, myelencephalon”