continent South America http://purl.bioontology.org/ontology/MESH/D013020 https://en.wikipedia.org/wiki/Category:South_America https://en.wikipedia.org/wiki/South_America South America is a continent of the western hemisphere with most of its area in the southern hemisphere. It is situated between the Pacific Ocean and the Atlantic Ocean and is attached at the north to North America by the Isthmus of Panama. South American The southern continent of the Western Hemisphere, extending southward from the Colombia-Panama border. Americas