معنی کلمه : denotation
English
The marking off or separation of anything.
Having a caudal fin extending around the end of the vertebral column, like that which is first formed in the embryo of fishes; diphycercal.

The marking off or separation of anything.
Having a caudal fin extending around the end of the vertebral column, like that which is first formed in the embryo of fishes; diphycercal.