also: ナイルおおとかげ
noun
Nile monitor; water leguaan
A large lizard species native to Africa; the name is a direct borrowing from English 'Nile monitor' combined with Japanese オオトカゲ (monitor lizard).
ナイルオオトカゲはアフリカに生息する大型のトカゲです。
The Nile monitor is a large lizard that lives in Africa.
オオトカゲ is the general term for monitor lizards; ナイルオオトカゲ specifically refers to the Nile monitor species.
From English 'Nile monitor' + Japanese オオトカゲ (monitor lizard).