What are atolls?

Some articles on atolls, atoll:

Acteon Group - Atolls
... The Acteon Group includes four atolls of relatively small size Matureivavao Tenararo Tenarunga Vahanga None of the islands on these atolls have permanent inhabitants ...
Administrative Divisions Of The Maldives - Definitions - Atoll
... The administrative definition of an “atoll” differs from the actual meaning of the word, atoll ... While naturally, an “atoll” refers to a ring of islands, an “atoll” in the administrative sense, refers to a group of “island” class constituencies, not ... While the majority of administrative atolls are indeed natural atolls, there are natural atolls which have 2 to 3 administrative atoll divisions, in addition to 1 “atoll” which is naturally an island ...
Sport In Tokelau - History
... Archaeological evidence indicates that the atolls of Tokelau — Atafu, Nukunonu, and Fakaofo — were settled about 1,000 years ago and may have been a "nexus ... The three atolls functioned largely independently while maintaining social and linguistic cohesion ... Tokelauan society was governed by chiefly clans, and there were occasional inter-atoll skirmishes and wars as well as inter-marriage ...
Atolls Of Tuvalu
... of nine separate islands, six of which are atolls ... Since an atoll typically consists of several islets, there is a total of more than 124 islands and islets ... The three remaining islands are actually atolls, too, but they have a completely closed rim of dry land, with a lagoon that has no connection to the open sea or that may be drying up ...
Administrative Divisions Of The Maldives
... the administrative divisions of the Maldives would consist of atolls, islands, and cities each administered by their own local council, under the basic terms of home rule ... Geographically, the Maldives are formed by a number of natural atolls plus a few islands and isolated reefs which form a pattern from North to South ... there are currently 189 islands, 19 atolls and 2 cities in the Maldives ...