noun
Choanozoa
A phylum of protists considered the closest living relatives of animals. Used in biological taxonomy.
襟鞭毛虫門は、動物に最も近い原生生物の一群である。
Choanozoa is a group of protists most closely related to animals.
From 襟 (collar) + 鞭毛虫 (flagellate) + 門 (phylum), referring to the collar of microvilli around the flagellum characteristic of choanoflagellates.