zygantrumn.
/zʌɪˈɡantrəm//zɪˈɡantrəm/ Anatomy and Zoology.
A double cavity on the posterior side of the neural arch of each ordinary vertebra in serpents and some lizards, into which the zygosphene of the next vertebra fits.
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anteocular1848
zygantrum1854
zygosphene1854
preocular1859
occipital1890
hemipenis1909
1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 197 This wedge [sc. the zygosphene] is received into a cavity (the ‘zygantrum’) excavated in the posterior expansion of the neural arch.
1888 G. Rolleston & W. H. Jackson Forms Animal Life (ed. 2) 73.
This entry has not yet been fully updated (first published 1921; most recently modified version published online March 2019).
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