stony coral
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6.0
- noun
- /ˈstoʊni ˈkɔrəl/
- Specialized
:
coral pétreo
- Scientists study stony coral because it plays a crucial role in forming the structure of underwater habitats.
Examples
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Protein skimmers have become indispensable for many aquarists who strive to maintain the high water quality necessary to keep stony corals.
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The reef is filled with vibrant fish that thrive around the dense colonies of stony coral.
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Conservation efforts focus on protecting stony coral to support marine biodiversity and maintain healthy reef ecosystems.
Synonyms
A sea animal with a hard, white skeleton that builds reefs and islands
A hard coral that builds reefs and islands
How Hard
- Specialized
1
6.0
Surface Forms
Morphology
The noun phrase directly combines 'stony' (very hard) with 'coral' (the marine organism or its skeleton), so its meaning — coral that is hard or produces a calcareous skeleton — is readily derived from the parts. This simple adjective + noun descriptive pattern is cross-linguistically common and should be understandable to a B1 learner who knows both constituent words.
Etymology
The noun stony coral comes from the hard, stone-like 'skeleton' these animals build. The word stony points to that rock-like quality and coral names the tiny animals that make mineral skeletons, so many colonies join to form 'reefs'—that's why we call them stony coral today.