urostyle

urostyle

[yoor-uh-stahyl]
noun Anatomy.
the fused vertebrae at the posterior end of the spinal column of some fishes and tailless amphibians.

Origin:
1870–75; uro-2 + -style2

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urostyle (ˈjʊərəʊˌstaɪl)
 
n
the bony rod forming the last segment of the vertebral column of frogs, toads, and related amphibians
 
[C19: from uro-² + Greek stulos pillar]

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