n.
Pronunciation: ˌ d ī - ə n- ' se-f ə - ˌ län, ˌ d ī -( ˌ )en-, -l ə n
Function: noun
Etymology: New Latin, from dia- + encephalon
Date: circa 1883
: the posterior subdivision of the forebrain
– di · en · ce · phal · ic \ -s ə - ' fa-lik \ adjective