noun
Deuterostomia
A superphylum of animals in biological taxonomy. Used in scientific contexts.
新口動物上門には脊椎動物や棘皮動物が含まれる。
Deuterostomia includes vertebrates and echinoderms.
A compound of 新口 (new mouth) + 動物 (animal) + 上門 (superphylum), referring to the embryonic development where the blastopore becomes the anus and the mouth forms secondarily.