Main Entry: thal·a·mus

Pronunciation: \ˈthal-ə-məs\

Function: noun

Inflected Form(s): plural thal·a·mi \-ˌmī, -ˌmē\

: the largest subdivision of the diencephalon that consists chiefly of an ovoid mass of nuclei in each lateral wall of the third ventricle and serves to relay impulses and especially sensory impulses to and from the cerebral cortex

[thalamus illustration]