paleoencephalon

P3A1L1E1O1E1N1C3E1P3H4A1L1O1N1

noun

The most ancient part of the brain.

Similar
paleencephalonpalaeencephalon
OriginEnglish encephalon ← Ancient Greek πᾰλαιός (pălaiós) →
Scrabble 24
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounpaleoencephalon (plural not attested)
  1. no pluralThe most ancient part of the brain.

Synonyms & antonyms

nounthe more primitive parts of the brain phylogenetically; most structures other than the cerebral cortex

Similar
paleencephalonpalaeencephalon
Broader
neural structure

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekπᾰλαιός (pălaiós)
  2. Englishpaleo-
  3. Englishencephalon
  4. Englishpaleoencephalon

From paleo- + encephalon.

Full word history & related roots →
Cite this entry
APA

paleoencephalon. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/paleoencephalon

MLA

“paleoencephalon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/paleoencephalon. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “paleoencephalon,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/paleoencephalon.

Source: paleoencephalon on Wiktionary, CC BY-SA 4.0.