[ 'α:kəsɔ: ]
■ noun Zoology & Palaeontology a reptile of a large group that includes the crocodilians together with the extinct dinosaurs and pterosaurs.
Origin
1930s: from mod. L. Archosauria , from Gk arkhos 'chief' or arkhōn 'ruler' + -saur .
[ 'α:kəsɔ: ]
■ noun Zoology & Palaeontology a reptile of a large group that includes the crocodilians together with the extinct dinosaurs and pterosaurs.
Origin
1930s: from mod. L. Archosauria , from Gk arkhos 'chief' or arkhōn 'ruler' + -saur .
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004