Am ‧ und ‧ sen, Ro ‧ ald /ˈæmənds ə n $ ˈɑː-, ˈrəʊəld/ BrE AmE
(1872–1928) a Norwegian ↑ explorer . He was the first person to sail through the Northwest Passage in 1903–06, and in 1911 he beat Captain Robert Scott in the race to become the first person to reach the South Pole.