atoll

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atoll

Definitions by Wordnik

  1. (noun) A ringlike coral island and reef that nearly or entirely encloses a lagoon.

Examples by Wordnik

  1. The atoll is on admiralty charts as Hikihoho, discovered by Bougainville [Louis Antoine de Bougainville, 1729-1811, French soldier and explorer, the first Frenchman to circumnavigate the world] but called Parlay after old Parlay, a wizard with pearls who never parts with a pearl and stores hundreds of ton of shell. - “Have you lived? What have you got to show for it?”
  2. The ring-like shape of the atoll is the result of coral reefs building up around a former volcanic island. - Where In The Universe Challenge #84 | Universe Today
  3. The rim of the atoll is a karst structure; there is also a quantity of exposed coral rock and extensive sand dunes and rubble to the southwest. - Ile Europa and Bassas da India xeric scrub
  4. Bassas da India (Iles Eparses): the atoll is a circular reef that sits atop a long-extinct, submerged volcano - French Southern and Antarctic Lands
  5. Inside the atoll is a large lagoon with shallows and pools 1 to 5 m deep. - Brazilian Atlantic Islands, Brazil

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