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cup coral

American

noun

any of several species of coral in which the polyp forms and houses itself in a cup-shaped depression in the skeleton.

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cup coral

Invasive cup coral has spread on World War II shipwrecks off Brazil.

From Salon ● Dec. 30, 2023

Scientists also worry about their tendency to attract non-native species, such as the orange cup coral, which kills and outcompetes native corals.

From Slate ● Aug. 5, 2016

One very common kind is called a cup coral, because the polyp formed a skeleton shaped like a cup.

From Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place by Rogers, Julia Ellen

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023