noun
entoproct
A phylum of small aquatic invertebrates; technical term used in biology.
内肛動物は、かつて外肛動物とともに苔虫動物に分類されていた。
Entoprocts were once classified together with ectoprocts in the Bryozoa.
Ectoproct (phylum Ectoprocta); often contrasted with entoprocts in older classification systems.
From 内 (inside) + 肛 (anus) + 動物 (animal), referring to the position of the anus inside the ring of tentacles.