Definition of aschelminth in English:
noun (plural aschelminths or aschelminthesˌaskhelˈminTHēzˌaSHhel-)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 aschelminths are minute wormlike animals, including the nematode worms, 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.
Definition of aschelminth in:
- British & World English dictionary
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