A long bone formed from fused vertebrae at the base of the vertebral column in some lower vertebrates, especially frogs and toads.
〔动〕尾杆骨
Example sentencesExamples
Anurans also have nine or fewer presacral vertebrae (usually eight), and the three or four posterior to the sacrum are fused into a rod called the urostyle.
The caudal vertebrae have been fused into a single rod-shaped skeletal element (the urostyle or coccyx) that lies between the ilia, in effect moving the tail internally.
Definition of urostyle in US English:
urostyle
nounˈyo͝orəˌstīl
Zoology
A long bone formed from fused vertebrae at the base of the vertebral column in some lower vertebrates, especially frogs and toads.
〔动〕尾杆骨
Example sentencesExamples
Anurans also have nine or fewer presacral vertebrae (usually eight), and the three or four posterior to the sacrum are fused into a rod called the urostyle.
The caudal vertebrae have been fused into a single rod-shaped skeletal element (the urostyle or coccyx) that lies between the ilia, in effect moving the tail internally.