diencephalon


di·en·ceph·a·lon

noun
\ˌdī-ən-ˈsef-ə-ˌlän, ˌdī-(ˌ)en-, -lən\

Definition of DIENCEPHALON

: the posterior subdivision of the forebrain—called also betweenbrain, interbrain
di·en·ce·phal·ic \-sə-ˈfal-ik\ adjective

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