Definitions

1. noun

A genus of corals, especially the red coral, Corallium rubrum, valued for its beauty and durability as an ornamental stone.

“The antique brooch was made from corallium, which was highly prized in the Victorian era.”

2. noun

A coral of the genus Corallium, especially the red coral, Corallium rubrum.

“The underwater explorer stumbled upon a rare species of corallium in the depths of the ocean.”