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n. The posterior part of the forebrain that connects the midbrain with the cerebral hemispheres, encloses the third ventricle, and contains the thalamus and hypothalamus. Also called betweenbrain, interbrain, thalamencephalon.

n. The region of the human brain, specifically the human forebrain, that includes the thalamus, the hypothalamus, the epithalamus, the prethalamus or subthalamus, and the pretectum.

n. The interbrain or thalamencephalon; -- sometimes abbreviated to dien. See thalamencephalon.

n. In anatomy, the inter-brain or middle brain, otherwise known as the deutencephalon and thalamencephalon.

n. the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon

"The anterior part of the fore-brain, including the rudiments of the cerebral hemispheres, is named the telencephalon, and its posterior portion is termed the diencephalon; both of these contribute to the formation of the third ventricle."

neural structure   

forebrain    thalamus    subthalamus    pretectum    hypothalamus   

thalamencephalon   

taproot    volute    tendo    pistils    midbrain