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- Dictionarycoral/ˈkɒrəl/
noun
- 1. a hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas: "a coral reef"
- 2. a sedentary coelenterate of warm and tropical seas, with a calcareous, horny, or soft skeleton. Most corals are colonial and many rely on the presence of green algae in their tissues to obtain energy from sunlight.
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