Dictionary:
Lissencephala
n. pl. (lĭs`sĕn*sĕf"ȧ*lȧ)
[NL., fr. Gr. lisso`s smooth + 'egke`falos the brain.]
(Zoöl.) A general name for all those placental mammals that have a brain with few or no cerebral convolutions, as Rodentia, Insectivora, etc.
