Atoll

Pronunciation

• Rhymes: -əʊl

Origin

From Medieval Latin അതൊലു (atolu, "reef") and Dhivehi އބތަލ

, from Persian آب‌تل (āb-tal, "water-hillock")

Full definition of atoll

Noun

1. A type of island consisting of a ribbon reef that nearly or entirely surrounds a lagoon and supports, in most cases, one to many islets on the reef platform. Atolls have a unique geology, so not all islands with a reef and a lagoon are atolls.

Anagrams

• allot