Agulhas, Cape (əgŭˈləs) [key] [Port., = needles], Western Cape province, South Africa; the southernmost point of Africa. Its name refers to the saw-edged reefs and sunken rocks that run out to sea and make navigation hazardous. A powerful lighthouse on the cape alerts ships. The meridian of Cape Agulhas, long. 20° E, is used to divide the Atlantic and Indian oceans.