Lissencephala
Pronunciation : Lis`sen*ceph"a*la
Part of Speech : n.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: A general name for all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc.
pl.
Source : Webster's Unabridged Dictionary, 1913