diphycercal
/ˌdɪfɪˈsɜːkəl/adjective
- Zoology (of a fish's tail) approximately symmetrical and with the vertebral column continuing to the tip, as in lampreys【动】圆鳍的, 圆尾鳍的。与HETEROCERCAL, HOMOCERCAL相对。
词源
mid 19th cent.: from Greek diphu- 'of double form' + kerkos 'tail' + -AL.