What is "septarium"

Septarium \Sep*ta"ri*um\, n.;pl. Septaria. [NL., fr. L. septum, saeptum, an inclosure, a partition, fr. sepire, saepire, to inclose.] (Geol.) A flattened concretionary nodule, usually of limestone, intersected within by cracks which are often filled with calcite, barite, or other minerals.

n. (context geology English) A flattened concretionary nodule, usually of limestone, intersected within by cracks which are often filled with calcite, barite, or other minerals.