Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun The brain of a vertebrate.

from The Century Dictionary.

  • noun In anatomy, that which is contained in the cranial cavity as a whole; the brain.

from the GNU version of the Collaborative International Dictionary of English.

  • noun (Anat.) The contents of the cranium; the brain.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

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

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Greek enkephalon, from neuter of enkephalos, in the head; see encephalo–.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Ancient Greek ἐγκέφαλος (enkephalos, "within the head"), from ἐν (en, "in") + κεφαλή (kephalē, "head").

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