Cerro Tololo Inter-American Observatory
[ ser-oh tuh-loh-loh; Spanish ser-raw taw-law-law ]
/ ˈsɛr oʊ təˈloʊ loʊ; Spanish ˈsɛr rɔ tɔˈlɔ lɔ /
noun
an astronomical observatory in the Chilean Andes having a 156-inch (4-meter) reflecting telescope.