noun, plural thal·a·men·ceph·a·lons, thal·a·men·ceph·a·la [thal-uh-men-sef–uh-luh] /ˌθæl ə mɛnˈsɛf ə lə/. Anatomy.
- the diencephalon.
noun plural -lons or -la (-lə) anatomy
- the part of the diencephalon of the brain that includes the thalamus, pineal gland, and adjacent structures
- another name for diencephalon
n.
- The part of the diencephalon comprising the thalamus and its associated structures.