/enˈsefəˌlän/ /-lən/
Noun, pl. encephalons
1. The area of central nervous system that includes all higher nervous centers, enclosed within the skull and continuous with the spinal cord; the brain. (wiktionary.org)
2. The vertebrate brain. (merriam-webster.com)
3. The contents of the cranium; the brain. (biology-online.org)
Syn: Brain
Word origin: From Ancient Greek ἐγκέφαλος (enkephalos, “within the head”), from ἐν (en, “in”) + κεφαλή (kephalē, “head”).