Definitions | atoll |
| noun
- 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.
Etymology: From Dhivehi "ab-tal" < Persian (fa-Arab, "Ù) (Äb-tal), meaning water-hillock.
Supplemental Details:Sponsor an extended definition for atoll for as little as $10 per month. Click here to contact us.
Full Definition of atoll
| |
|