Zygosphene
Pronunciation : Zyg"o*sphene
Part of Speech : n.
Etymology : [Gr. (Anat.)
Definition : Defn: A median process on the front part of the neural arch of the vertebr? of most snakes and some lizards, which fits into a fossa, called the zygantrum, on the back part of the arch in front.
Source : Webster's Unabridged Dictionary, 1913