coral reef

Definitions of coral reef
  1. noun
    a reef consisting of coral consolidated into limestone
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    Great Barrier Reef
    the largest coral reef in the world; in the Coral Sea off the northeastern coast of Australia
    Bikini
    an atoll in the Marshall Islands; formerly used by the United States as a site for testing nuclear weapons
    Eniwetok
    an atoll in the Marshall Islands; site of an amphibious assault in World War II; later used temporarily by the United States to test atomic bombs
    Kwajalein
    an atoll in the western Marshall Islands that was used as a Japanese air and naval base during World War II
    Midway Islands
    an atoll in the Hawaiian Islands some 1300 miles to the northwest of Honolulu; site of an important United States naval base
    types:
    atoll
    an island consisting of a circular coral reef surrounding a lagoon
    barrier reef
    a long coral reef near and parallel to the shore
    Florida key, cay, key
    a coral reef off the southern coast of Florida
    type of:
    reef
    a submerged ridge of rock or coral near the surface of the water
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