Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians.

from the GNU version of the Collaborative International Dictionary of English

  • n. A styliform process forming the posterior extremity of the vertebral column in some fishes and amphibians.

from The Century Dictionary and Cyclopedia

  • n. A prolongation backward of the spinal column, especially of the last vertebra, in certain fishes and amphibians: in some Amphibia forming the greater part of the so-called sacrum, or a long bone in the axis of the spinal column behind the sacrum proper, and approximately coextensive with the length of the ilia.

Etymologies

Sorry, no etymologies found.

Examples

  • A urostyle (indicated by the arrow) is formed from the fusion of pelvic vertebrae and it makes a really cool-looking tri-branched shape with the frog's simplified pelvis:

    Update

  • As the tadpole approaches the frog stage the vertebral column in the tail is rapidly absorbed, and its vestiges appear in the adult as the urostyle.

    Text Book of Biology, Part 1: Vertebrata

  • Posteriorly the vertebral column terminates in the urostyle, a calcified unsegmented rod.

    Text Book of Biology, Part 1: Vertebrata

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