zygosphenen.
/ˈzʌɪɡəʊsfiːn//ˈzɪɡəʊsfiːn/ Anatomy and Zoology.
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.
ΘΚΠ
the world > animals > reptiles > order Squamata (lizards and snakes) > [noun] > parts of
anteocular1848
zygantrum1854
zygosphene1854
preocular1859
occipital1890
hemipenis1909
1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 196 A wedge~shaped process (the ‘zygosphene’)..is developed from the fore part of the base of the spine.
1892 Proc. Zool. Soc. 1 Mar. 176 The zygosphenes and zygantra of the Ophidian vertebræ.
Derivatives
zygoˈsphenal adj. belonging to or constituting a zygosphene.
ΘΚΠ
the world > animals > reptiles > order Squamata (lizards and snakes) > [adjective] > of parts of members of Squamata
zygosphenal1854
1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 197 Surfaces to which the zygosphenal surfaces are adapted.
This entry has not yet been fully updated (first published 1921; most recently modified version published online March 2019).
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