fire coral
noun
1- a colonial coral-like hydrozoan, the heavy external skeleton of which forms reefs. The polyps bear nematocysts which can inflict painful stings火珊瑚虫, 多孔螅虫。
1.1
- Genus Millepora, order Hydroida (or Milleporina), class Hydrozoa.多孔螅属, 水螅虫目（或多孔螅目）, 水螅虫纲。