The southernmost part of an area or the southernmost place is the one that is farthest towards the south.
例句
The ancient province of Satsuma lies in the southernmost part of the Japanese island of Kyushu.古老的萨摩省位于日本九州岛最南端。...Aswan, Egypt's southernmost city.阿斯旺——埃及最南端的城市
英汉词典释义
adj.
最南的;极南的
the southernmost point of Greenland费尔韦尔角格陵兰岛的最南端
英英词典释义
Adjective
1. situated farthest south;
"Key West is the southernmost city in the United States"