What is atoll?

  • (noun): An island consisting of a circular coral reef surrounding a lagoon.


An atoll ( /ˈætɒl/ or /æˈtɒl/) is a coral island (or islands) that encircles a lagoon partially or completely.

Read more about Atoll.

Some articles on atoll:

Ant Atoll
... Ant Atoll is a small atoll lying off the west coast of Pohnpei in the Federated States of Micronesia ... Along with the nearby Pakin Atoll, these islands constitute the Senyavin group of islands ... The atoll is no longer inhabited ...
Sport In Tokelau - Healthcare and Education
... Each atoll has a school and hospital ... based in Apia and a Chief Clinical Advisor who moves from atoll to atoll as required to assist the doctors attached to each hospital ...