noun ·Rare ·Advanced level

Definitions

Noun

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

Synonyms

All synonyms

turtle-stone

Etymology

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

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.