# septarium

> English word · Noun · IPA /sɛpˈtɛəɹi.əm/

## Definitions
1. A flattened concretionary nodule, usually of limestone, intersected within by cracks which are often filled with calcite, barite, or other minerals.

## Etymology
From Latin saeptum (“inclosure, partition”) + -arium.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/septarium