新しん口こう動どう物ぶつ

noun

deuterostome

A zoological term for animals in which the first embryonic opening becomes the anus. Contrasts with 旧口動物 (protostome).

See also: 旧口動物

• ヒトを含ふくむ脊せき椎つい動どう物ぶつは新しん口こう動どう物