[ ˌdʌɪɛn'sɛf(ə)lɒn , -'kɛf- ]
■ noun Anatomy the caudal (posterior) part of the forebrain, containing the epithalamus, thalamus, hypothalamus, and ventral thalamus and the third ventricle. Compare with telencephalon .
Derivatives
diencephalic adjective
Origin
C19: from di- 3 + encephalon .