Lyencephala
Pronunciation : Ly`en*ceph"a*la
Part of Speech : n.
Etymology : [NL., fr. Gr. (Zo?l.)
Definition : Defn: A group of Mammalia, including the marsupials and monotremes; - - so called because the corpus callosum is rudimentary.
pl.
Source : Webster's Unabridged Dictionary, 1913