hesperornis
/,hespә'rɔ:nis/
📖 中文释义
- n. [古生](化石见于北美洲大陆)黄昏鸟
📘 English Definition（英文释义）
- n. A genus of large, extinct, wingless birds from the
- Cretaceous deposits of Kansas, belonging to the Odontornithes. They had
- teeth, and were essentially carnivorous swimming ostriches. Several
- species are known. See Illust. in Append.