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词汇 caecilian
释义

Definition of caecilian in English:

caecilian

(also coecilian)
nounsɪˈsɪlɪənsēˈsilyən
Zoology
  • A burrowing wormlike amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.

    〔动〕蚓螈

    Order Gymnophiona (or Apoda): five families

    Example sentencesExamples
    • While burrowing, caecilians employ concertina locomotion, lateral undulation, and vermiform locomotion.
    • In contrast to frogs, caecilians have a radically elongated vertebral column, no limbs or girdles, and relatively elaborate hypaxial musculature.
    • The oldest known frogs, salamanders and caecilians are very similar to their living descendants.
    • Although they are amphibians, caecilians are denizens of the terrestrial underworld.
    • Some not-so-familiar creatures, like the legless, burrowing caecilians, are also amphibians.

Origin

From modern Latin Caecilia (genus name), from Latin caecilia 'slow-worm', + -an.

Rhymes

Abbevillian, Azilian, Brazilian, Castilian, Chilean, Churchillian, civilian, cotillion, crocodilian, epyllion, Gillian, Lilian, Maximilian, Pamphylian, pavilion, postilion, Quintilian, reptilian, Sicilian, Tamilian, vaudevillian, vermilion, Virgilian

Definition of caecilian in US English:

caecilian

(also coecilian)
nounsēˈsilyən
Zoology
  • A burrowing wormlike amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.

    〔动〕蚓螈

    Order Gymnophiona (or Apoda): five families

    Example sentencesExamples
    • In contrast to frogs, caecilians have a radically elongated vertebral column, no limbs or girdles, and relatively elaborate hypaxial musculature.
    • The oldest known frogs, salamanders and caecilians are very similar to their living descendants.
    • While burrowing, caecilians employ concertina locomotion, lateral undulation, and vermiform locomotion.
    • Although they are amphibians, caecilians are denizens of the terrestrial underworld.
    • Some not-so-familiar creatures, like the legless, burrowing caecilians, are also amphibians.

Origin

From modern Latin Caecilia (genus name), from Latin caecilia ‘slow-worm’, + -an.

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