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'tweenbrain

noun

Synonym of diencephalon.

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Meanings

noun'tweenbrain (plural 'tweenbrains)

plural 'tweenbrains · alternative betweenbrain · alternative tweenbrain · alternative 'tween-brain · alternative tween-brain

datedanatomySynonym of diencephalon.
Deep within the brain is a biologically ancient section called the diencephalon or tweenbrain.
1931, Medicine: Tweenbrain & Stomach
1 more example
The brainstem constituents include the medulla oblongata, pons varolii, midbrain, and tweenbrain.
2007, Robb S. Rehberg, Sports Emergency Care: A Team Approach
Synonyms: diencephalon

Synonyms & antonyms

nounSynonym of diencephalon.

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Origin

From 'tween + brain.

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Cite this entry

APA

'tweenbrain. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/'tweenbrain

MLA

“'tweenbrain.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/'tweenbrain. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “'tweenbrain,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/'tweenbrain.

Source: 'tweenbrain on Wiktionary, CC BY-SA 4.0.