zygosphenehttp://www.oed.com/dictionary/zygosphene_n%3Ftab%3Dmeaning_and_usezygosphene, n.
First published 1921; not fully revised

zygosphenenoun

Anatomy and Zoology.
  1. 1854–
    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.
    1. 1854
      A wedge~shaped process (the ‘zygosphene’)..is developed from the fore part of the base of the spine.
      R. Owen, Structure of Skeleton & Teeth in Orr's Circle of Sciences: Organic Nature vol. I. 196
    2. 1892
      The zygosphenes and zygantra of the Ophidian vertebræ.
      Proceedings of Zoological Society 1 March 176

zygosphene, n. was first published in 1921; not fully revised.

zygosphene, n. was last modified in December 2024.