noun, noun which may take the genitive case particle 'no'
South American continent
Refers to the continent of South America as a geographical entity. Often used in formal or academic contexts.
南米大陸には12の独立国があります。
There are 12 independent countries on the South American continent.
アマゾン川は南米大陸を流れている。
The Amazon River flows through the South American continent.
南アメリカ is a more common, slightly less formal term for South America as a region, while 南米大陸 specifically emphasizes the continental landmass.
Compound of 南米 (South America) and 大陸 (continent). The reading なんべい is the on'yomi of 南米.