'Lissencephala' definitions:

Definition of 'Lissencephala'

From: GCIDE

Lissencephala \Lis`sen*ceph"a*la\ (l[i^]s`s[e^]n*s[e^]f"[.a]*l[.a]), n. pl. [NL., fr. Gr. lisso`s smooth + 'egke`falos the brain.] (Zool.) A general name for all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc. [1913 Webster] Lissom