• Webster's Revised Unabridged Dictionary
    • n Thalamencephalon (Anat) The segment of the brain next in front of the midbrain, including the thalami, pineal gland, and pituitary body; the diencephalon; the interbrain.
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Century Dictionary and Cyclopedia
    • n thalamencephalon The parts of the brain about the third ventricle developed from the hinder part of the first primary cerebral vesicle, including the thalami, the optic tracts and chiasma, the infundibulum and cerebral part of the pituitary body, the corpora albicantia, the conarium, the ependymal part of the velum interpositum, a lamina cinerea, and other structures. Also called diencephalon, interbrain, 'tween-brain. See cuts under Elasmobranchii, encephalon, Rana, Petromyzontidæ, and cerebral.
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Webster's Revised Unabridged Dictionary
NL. See Thalamus, and Encephalon


In literature:

A deeper section through the thalamencephalon, corresponding to B in (1).
"Text Book of Biology, Part 1: Vertebrata" by H. G. Wells
The Thalamencephalon is much reduced.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7" by Various
Cerebrum (Primitive Fore-brain) < Thalamencephalon (Diencephalon).
"Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 3" by Various
The thalamencephalon in fig.
"The Works of Francis Maitland Balfour, Volume 1" by Francis Maitland Balfour