Online Google Dictionary

atolls 中文解釋 wordnet sense Collocation Usage Collins Definition
Noun
/ˈatˌôl/,/ˈatˌäl/,/ˈāˌtôl/,/ˈāˌtäl/,
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atolls, plural;
  1. A ring-shaped reef, island, or chain of islands formed of coral

  1. (atoll) an island consisting of a circular coral reef surrounding a lagoon
  2. An atoll (or) is an island (or islands) of coral that encircles a lagoon partially or completely.
  3. (Atoll (band)) Atoll is a French progressive rock band.
  4. (ATOLL (oceanography)) The Antarctic Technology Offshore Lagoon Laboratory (ATOLL ELITE UNIVERSITY) was a floating oceanographic laboratory for in situ observation experiments and for field testing new instruments and equipment for polar expeditions. ...
  5. (ATOLL (programming language)) Acceptance, Test Or Launch Language (ATOLL) was the programming language used for automating the checking and launch of Saturn rockets.
  6. (atoll) 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
  7. (atoll) an island formed from a coral reef, sometimes circular or horseshoe-shaped, with a lagoon in the center
  8. (atoll) Island surrounded by a coral reef.
  9. (atoll) A ring-shaped tropical island or coral reef with a lagoon in the middle.
  10. (atoll) a ring-shaped coral reef, or a string of closely spaced small coral islands, enclosing or nearly enclosing a shallow lagoon; previously called atollon.
  11. (Atoll) A horseshoe or circular array of islands, capping a coral reef system perched around an oceanic volcanic seamount.
  12. (Atoll) A ring-shaped coral reef that grows upward from a submerged volcanic peak and encloses a lagoon. May support low-lying islands composed of coral debris.*
  13. (Atoll) Rear hemisphere heat-seeking missile.
  14. (Atoll) is a special class of island. Most of the world's atolls are located in the Pacific. An atoll has an organic reef. The coral reef acts as a barrier. Most atolls were probably formed as volcanic islands sunk.
  15. (atoll) A circular reef that encloses a relatively shallow lagoon and extends from a very great depth to the sea surface. An atoll forms when an oceanic island ringed by a barrier reef sinks below sea level.
  16. (atoll) Circular shaped coral islands that either partly or completely surround a central lagoon.  Atolls form around submerged volcanic islands. They are typically low lying, so their human populations are susceptible to rising sea levels due to climate change.
  17. (atoll) a massive coral growth on a submerged mountain range or volcano. Atolls typically contain low islands encircling a seawater lagoon.