A horny coral with a vertical treelike or fanlike skeleton, living chiefly in warmer seas.
- Gorgonis and other genera, order Gorgonacea.
- Soft corals such as the sea fan are both its feeding ground and its food.
- After scaling a sea fan, the feather star might stay for a while, hanging on by means of tiny hooks called cirri.
- Our afternoon dive was at Gorgonian One, aptly named after a giant sea fan the size of a small shed.
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Syllabification: sea fan
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