atoll

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atoll
An atoll is created as a coral reef builds up around an eroding volcanic island.

a·toll

 (ăt′ôl′, -ŏl′, ā′tôl′, ā′tŏl′)
n.
An island or chain of islets connected by a coral reef that nearly or entirely encloses a lagoon.

[Dhivehi atholhu; probably akin to Sinhalese ätul, interior (from the interior lagoon), probably from Sanskrit *antala-, interior, variant of antara-; see en in Indo-European roots.]

atoll

(ˈætɒl; əˈtɒl)
n
(Physical Geography) a circular coral reef or string of coral islands surrounding a lagoon
[C17: from atollon, native name in the Maldive Islands]

at•oll

(ˈæt ɔl, -ɒl, -oʊl)

n.
a ring-shaped coral reef or a string of closely spaced small coral islands, enclosing or nearly enclosing a shallow lagoon.
[1615–25; earlier atollon < French]
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atoll
An atoll develops (from left to right) when a volcanic island erodes and a ring of coral grows up around it. The depression left by the crater of an eroding volcano fills with water, forming a lagoon.

a·toll

(ăt′ôl′, ā′tôl′)
A coral island forming a ring that nearly or entirely encloses a shallow lagoon.

atoll

A ring-shaped coral reef enclosing a lagoon.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.atoll - an island consisting of a circular coral reef surrounding a lagoonatoll - an island consisting of a circular coral reef surrounding a lagoon
coral reef - a reef consisting of coral consolidated into limestone
Translations
atolli
atol
atoll

atoll

[ˈætɒl] Natolón m

atoll

[ˈætɒl] natoll m

atoll

nAtoll nt

atoll

[ˈætɒl] natollo
References in periodicals archive ?
New shots were made also on a coral atoll, and he was recently in Mozambique, Zanzibar, and Tanzania, as well as the US states of Texas and Louisiana where he made an impressive image of an oak alley.
A mission is now under way to prove the theory as researchers make their way toward Nikumaroro, a coral atoll that is part of the Phoenix Islands of Kiribati.
Last year, a Pennsylvania-based group called International Group for Historic Aircraft Recovery (TIGHAR) repositioned the spotlight on an alternate theory: With their fuel rapidly depleting, Earhart and Noonan used celestial navigation to land on a remote coral atoll named Gardner Island, about 400 miles south of Howland Island, their original destination.
Imagine that the first crisis facing the next president would be a seizure by China of the Scarborough Shoal, a coral atoll off the Philippines in the South China Sea.
Home to two Unesco World Heritage sites, the archipelago shares a curious Arab connection: the fabled Aldabra, the world's largest raised coral atoll, first seen by early Arab seafarers of the 9th century A.
Dead Man Fall Suwarrow IT is 9294 miles from Glasgow to the low coral atoll in the Pacific Ocean's Cook Islands that this song is named after.
Atoll - 1 well is named after a coral reef, sometimes called a coral atoll, which is a ring-shaped coral reef, it added.
Atoll -- 1 well is named after a coral reef, sometimes called a coral atoll, which is a ring-shaped coral reef.
In 1996, Sacks and two colleagues went to the tiny coral atoll of Pingelap, a dot on the map of Micronesia where 10% of the population share a genetic eye condition.
Jorge Salvador Alvarenga, 37, was found in January on a remote coral atoll in the Marshall Islands, after setting sail from Mexico in December 2012.
He was found in a disoriented state on a remote coral atoll in his 7.
It is the largest raised coral atoll in the world and its dense forest has a canopy averaging 20 meters in height, and the forest is an essential component of the atoll, which is considered a true natural laboratory for scientific study, it said.