Last Updated:2025/11/30
(anatomy, psychology) The most primitive part of the brain; the brain stem. / (by extension) Any part of a person's psyche or personality dominated by instinct or impulse rather than rational thought.
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lizard brain
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Source Word
lizard brain
Noun
broadly
Japanese Meaning
最も原始的な脳部分、すなわち脳幹のこと / 本能や衝動に支配され、理性的思考よりも感情や直感に基づく精神の部分
( plural )