zygosphene
Zyg"o*sphene, n. Etym: [Gr. (Anat.) Defn: A median process on the front part of the neural arch of the vertebræ of most snakes and some lizards, which fits into a fossa, called the zygantrum, on the back part of the arch in front.
Zyg"o*sphene, n. Etym: [Gr. (Anat.) Defn: A median process on the front part of the neural arch of the vertebræ of most snakes and some lizards, which fits into a fossa, called the zygantrum, on the back part of the arch in front.