archosaur
/ˈɑːkəsɔː(r)/noun
1- Zoology & Palaeontology a reptile of a large group that includes the dinosaurs and pterosaurs, represented today only by the crocodilians【动, 古生物】古蜥, 祖龙。
1.1
- Subdivision Archosauria, subclass Diapsida.古龙亚门, 双孔亚纲。
词源
1930s: from modern Latin Archosauria, from Greek arkhos 'chief' or arkhōn 'ruler' + -SAUR.