| 释义 |
zygosphene Anat. and Zool.|ˈzaɪgəʊsfiːn, ˈzɪg-|
[f. Gr. ζυγόν yoke + σϕήν wedge.]
A double wedge-shaped projection on the anterior side of the neural side of each ordinary vertebra in serpents and some lizards, which fits into the zygantrum of the next vertebra. Hence zygoˈsphenal a., belonging to or constituting a zygosphene.
1854Owen in Orr's Circ. Sci., Org. Nat. I. 196 A wedge⁓shaped process (the ‘zygosphene’)..is developed from the fore part of the base of the spine. Ibid. 197 Surfaces to which the zygosphenal surfaces are adapted. 1892Proc. Zool. Soc. 1 Mar. 176 The zygosphenes and zygantra of the Ophidian vertebræ. |