atoll (C2)

noun

Pronunciation: /ˈæt.ɒl/

Definition

A ring-shaped coral reef or string of closely spaced coral islets that encircles a lagoon.

Examples

• The small atoll provided a perfect refuge for the ship during the tropical storm.

• Scientists study the biodiversity of the atoll to understand how coral reefs adapt to rising sea levels.

• Many of the world's most remote atolls are located in the middle of the Indian and Pacific Oceans.

Synonyms of atoll

Words with a similar meaning to atoll:

• island
• reef
• cay

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