noun
Annelida; phylum of ringed worms
Scientific taxonomic term for the phylum Annelida, which includes earthworms, leeches, and polychaetes. Used in biology and zoology contexts.
環形動物門にはミミズやヒルが含まれる。
The phylum Annelida includes earthworms and leeches.
From 環形 (ring-shaped) + 動物 (animal) + 門 (phylum), a direct calque of the scientific name Annelida (from Latin anellus 'little ring').