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septarium |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: 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.