atoll

(redirected from Darwin Point)
Also found in: Thesaurus, Encyclopedia.
click for a larger image
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]
click for a larger image
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 ?
For as Francis Darwin points out, the Sketch and The Origin resemble each other in general structure and have the same order of material (Darwin, Works x: xix).
In The Descent of Man, and Selection in Relation to Sex (1871), Darwin points out the many physical characteristics common to humans and other animals, especially the great apes.