Coralline /(? [or] ?)/

Cor·al·line

Coralline

a.
  1. Composed of corallines; as, coralline limestone.

Coralline

n.
  1. A submarine, semicalcareous or calcareous plant, consisting of many jointed branches. (Bot.)
  2. Formerly any slender coral-like animal; -- sometimes applied more particulary to bryozoan corals. (Zool.)