Definition of caecilian in English:

caecilian

(also coecilian)

noun

Zoology
  • A burrowing worm-like amphibian of a tropical order distinguished by poorly developed eyes and the lack of limbs.

    • ‘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.’
    • ‘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.’
    • ‘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.

Pronunciation:

caecilian

/sɪˈsɪlɪən/