aschelminth
/ˈæʃhelmɪnθ/noun
(pl. aschelminths或aschelminthes)
1- 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.【动】袋形动物。
1.1
- Phylum Nematoda and about seven minor phyla, formerly placed in a phylum Aschelminthes.线虫动物门和约七个次要的门, 曾被归入袋形动物门。
词源
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）.