Definition of diphycercal in English:

diphycercal

adjectiveˌdɪfɪˈsəːk(ə)lˌdifəˈsərk(ə)l

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
Contrasted with heterocercal, homocercal
Example sentencesExamples
- Bodies are long and slender, somewhat like salamanders, with a diphycercal tail.
- The symmetrical, diphycercal tail, not perfected by gnathostomes until the Cretaceous, was standard equipment on heterostracans in the Silurian.
- The Heterostracan head is covered with several armoured plates, the body with large scales and the tail is most often diphycercal.
- In Strepsodus the tail was diamond shaped and diphycercal; in Gooloogongia loomesi it was nearly so.
- Sharks, and similar chondrichthyes, have heterocercal tails; the diphycercal tails are found in lungfish and their relatives; and the homocercal tail is characteristic of bony fish.

Origin

Mid 19th century: from Greek diphu- 'of double form' + kerkos 'tail' + -al.

Definition of diphycercal in US English:

diphycercal

adjectiveˌdifəˈsərk(ə)l

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
Contrasted with heterocercal, homocercal
Example sentencesExamples
- Sharks, and similar chondrichthyes, have heterocercal tails; the diphycercal tails are found in lungfish and their relatives; and the homocercal tail is characteristic of bony fish.
- In Strepsodus the tail was diamond shaped and diphycercal; in Gooloogongia loomesi it was nearly so.
- Bodies are long and slender, somewhat like salamanders, with a diphycercal tail.
- The symmetrical, diphycercal tail, not perfected by gnathostomes until the Cretaceous, was standard equipment on heterostracans in the Silurian.
- The Heterostracan head is covered with several armoured plates, the body with large scales and the tail is most often diphycercal.

Origin

Mid 19th century: from Greek diphu- ‘of double form’ + kerkos ‘tail’ + -al.

单词	diphycercal
释义	Definition of diphycercal in English: diphycercal adjectiveˌdɪfɪˈsəːk(ə)lˌdifəˈsərk(ə)l 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 Contrasted with heterocercal, homocercal Example sentencesExamples Bodies are long and slender, somewhat like salamanders, with a diphycercal tail. The symmetrical, diphycercal tail, not perfected by gnathostomes until the Cretaceous, was standard equipment on heterostracans in the Silurian. The Heterostracan head is covered with several armoured plates, the body with large scales and the tail is most often diphycercal. In Strepsodus the tail was diamond shaped and diphycercal; in Gooloogongia loomesi it was nearly so. Sharks, and similar chondrichthyes, have heterocercal tails; the diphycercal tails are found in lungfish and their relatives; and the homocercal tail is characteristic of bony fish. Origin Mid 19th century: from Greek diphu- 'of double form' + kerkos 'tail' + -al. Definition of diphycercal in US English: diphycercal adjectiveˌdifəˈsərk(ə)l 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 Contrasted with heterocercal, homocercal Example sentencesExamples Sharks, and similar chondrichthyes, have heterocercal tails; the diphycercal tails are found in lungfish and their relatives; and the homocercal tail is characteristic of bony fish. In Strepsodus the tail was diamond shaped and diphycercal; in Gooloogongia loomesi it was nearly so. Bodies are long and slender, somewhat like salamanders, with a diphycercal tail. The symmetrical, diphycercal tail, not perfected by gnathostomes until the Cretaceous, was standard equipment on heterostracans in the Silurian. The Heterostracan head is covered with several armoured plates, the body with large scales and the tail is most often diphycercal. Origin Mid 19th century: from Greek diphu- ‘of double form’ + kerkos ‘tail’ + -al.
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