Definition
Madrepore refers to a type of stony coral, especially those with a porous or branching structure. The term is often used to describe corals belonging to the family Acroporidae. These corals are key reef builders, contributing significantly to the structure of coral reefs. They have a hard, calcium carbonate skeleton. Madrepore corals come in various shapes and sizes. Many have symbiotic algae, zooxanthellae.