archencephala
Also found in: Medical, Encyclopedia.
arch·en·ceph·a·lon
(är′kĕn-sĕf′ə-lŏn′)n. pl. arch·en·ceph·a·la (-lə)
The part of the primitive embryonic brain from which the forebrain and midbrain develop.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.