| 释义 |
ˈurostyle Biol.
[f. uro-2 + Gr. στῦλος pillar.]
The posterior unsegmented portion of the vertebral column in certain fishes and amphibians.
1875Huxley & Martin Elem. Biol. 183 The commencement of the canal of the urostyle. Ibid. 204–6. 1878 F. J. Bell Gegenbaur's Comp. Anat. 433 A long dagger-shaped bony piece..ordinarily known as the urostyle. 1888Rolleston & Jackson Anim. Life 94 The last or terminal caudal vertebra..has the centrum prolonged into the urostyle. |