1. of, relating to, or formed by concretion; characterized by the formation of hard, compact masses from mineral deposits
Usage: geology; technical

Examples

• The concretionary nodules were scattered throughout the sedimentary rock layer.
• Geologists studied the concretionary formations to understand the mineral composition of the ancient seabed.
• The concretionary process created hard, rounded stones over millions of years.
• These concretionary structures are common in limestone deposits.
• The sample contained several concretionary masses embedded in the surrounding matrix.