urostyle

[ yoor-uh-stahyl ]

/ ˈyʊər əˌstaɪl /

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noun Anatomy.

the fused vertebrae at the posterior end of the spinal column of some fishes and tailless amphibians.

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Origin of urostyle

First recorded in 1870–75; uro-² + -style²

Words nearby urostyle

uropod, uropygial, uropygial gland, uropygium, uroscopy, urostyle, Urquhart, Urquhart Castle, Ursa Major, Ursa Minor, ursid

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use urostyle in a sentence

The post-sacral part of the spinal column ossifies continuously, forming an unsegmented cylindrical rod, the urostyle.
The Vertebrate Skeleton|Sidney H. Reynolds
The urostyle is a long rod-like bone forming the posterior unsegmented continuation of the vertebral column.
The Vertebrate Skeleton|Sidney H. Reynolds
In Anura the number of vertebrae is very greatly reduced, only nine and the urostyle being present.
The Vertebrate Skeleton|Sidney H. Reynolds
The urostyle is a long cylindrical rod which articulates with the sacrum generally by two facets.
The Vertebrate Skeleton|Sidney H. Reynolds

The urostyle is post-sacral and corresponds to three or more modified vertebrae.
The Vertebrate Skeleton|Sidney H. Reynolds

British Dictionary definitions for urostyle

urostyle

/ (ˈjʊərəʊˌstaɪl) /

noun

the bony rod forming the last segment of the vertebral column of frogs, toads, and related amphibians

Word Origin for urostyle

C19: from uro- ² + Greek stulos pillar

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012