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Related to atoll: Midway Atoll


see coral reefscoral reefs,
limestone formations produced by living organisms, found in shallow, tropical marine waters. In most reefs, the predominant organisms are stony corals, colonial cnidarians that secrete an exoskeleton of calcium carbonate (limestone).
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A ring-shaped coral reef that surrounds a lagoon without projecting land area and that is surrounded by open sea.


a circular coral reef or string of coral islands surrounding a lagoon


References in periodicals archive ?
Because the reefs that comprise atolls are formed by coral growth in warm waters, they are only found inside the tropics.
Foreign Secretary Albert del Rosario confirmed on Wednesday the Chinese vessels had left Quirino Atoll, a ring-shaped coral reef 260 kilometers (140 nautical miles) off Palawan province.
The majority of the system is built on a four metre structure creating 1,840 m2 of shaded public space that is limited on the atoll.
The atolls are spread over roughly 90,000 square kilometers, making the Maldives one of the world's most dispersed countries.
Organized by IUCN (International Union for Conservation of Nature), in collaboration with the Ministry of Environment and Energy and the Ministry of Fisheries and Agriculture as well as the North Ari Atoll Council, the day-long festival also provided local residents with an opportunity to voice their concerns regarding environmental issues in their communities.
The United States conducted nuclear tests on and around the Bikini and Enewetak Atolls, two of the 29 atolls and five islands comprising the Republic of the Marshall Islands, from 1946 to 1958.
The people of Rongelap atoll in the northern Marshall Islands, about 130 kilometres east of the 'Castle Bravo' blast, were covered in a cloud of powdery ash laden with radioactive by-products carried by the wind.
Jenny Vettiger Mufeed, guest experience manager at Atoll Paradise, said, 'It is an honour to have been selected for the second year now as a leader in the travel industry of the region
Atoll Paradise is very proud of this accomplishment, especially since the company only added the destination Seychelles in late 2011 to its exclusive luxury resort portfolio and has already been recognized as the Leading Luxury Tour Operator of this beautiful island nation.
Keywords: Bikini Atoll, Marshall Islands, nuclear testing, cultural landscape, World Heritage.
All images, brochures and even the resort model showed boats and watercrafts inside the atoll and yet now we are being denied this lifestyle without discussion or even prior notice.
Army Kwajalein Atoll is meant to support the Ronald Reagan Ballistic Missile Defense Test Site, part of the Department of Defense Major Range and Test Facility Base.