plural noun Cor·al·li·idae \ˌkȯrəˈlīəˌdē\

Definition of Coralliidae

  1. :  a family of erect branching corals (order Gorgonacea) having a dense skeletal axis free or nearly free from horny material — see corallium

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Origin and Etymology of coralliidae

New Latin, from Corallium, type genus + -idae

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capable of being understood in two ways

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