Definition of aschelminth in English:

aschelminth

noun

Zoology
  • An invertebrate animal belonging to a group of phyla that are distinguished by the lack of a well-developed coelom and blood vessels. Most are minute worm-like animals, including the nematodes, rotifers, and water bears.

    • ‘Since aschelminths all lack substantial hard parts, their fossil record is extremely spotty.’
    • ‘Clearly, the status of several traditional ‘aschelminthes’ groups awaits further confirmation.’
    • ‘An alternative explanation is that it was a kind of aschelminth (pseudocoelomate worm), as indicated for example by its asymmetrical mouth.’

Origin

From modern Latin Aschelminthes (former phylum name), from Greek askos sac + helminth worm (from the former belief that animals of this group had a fluid-filled internal sac).

Pronunciation:

aschelminth

/ˈaʃhɛlmɪnθ//ˈaskhɛlmɪnθ/