| Front | noun 1 a hard stony substance secreted by certain marine coelenterates as an external skeleton, typically forming large reefs in warm seas. 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. 3 the unfertilized roe of a lobster or scallop, which is used as food and becomes reddish when cooked. |
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| Back | coral |
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