Arecibo Observatory
noun
a radio-astronomy and ionospheric observatory near Arecibo, Puerto Rico: site of one of the world's largest single-dish radio telescopes, 1000 feet (305 meters) in diameter.
British Dictionary definitions for arecibo observatory
Arecibo Observatory
/ (Spanish ɑreˈθiβo) /
noun
an observatory in Puerto Rico at which the world's largest dish radio telescope (diameter 305 m) is situated. It is operated by the National Astronomy and Ionosphere Center