Phrase guide

triune brain

noun · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

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1

noun

Meaning 1

A discredited model of the brain according to which the reptilian complex, the paleomammalian complex (limbic system), and the neomammalian complex (neocortex) are each independently conscious, as structures sequentially added to the forebrain during the course of evolution.

Definition source: English Wiktionary via Wiktextract

Topics: medicine, neuroscience, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

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Across languages

Translations

3 source translations are retained for this English entry.

  • Finnish: kolmet aivot — model of brain
  • Finnish: kolmiaivoteoria — model of brain
  • Polish: trójjedyny mózg — model of brain