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1. The formation of stonelike objects within a body organ (e.g., the kidneys)
    
2. A hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body
   "renal concretions can be very painful";
   - calculus
    
3. An increase in the density of something
   - compaction, compression, densification
    
4. The union of diverse things into one body, form or group; the growing together of parts
   - coalescence, coalescency, coalition, conglutination, concrescence

Derived forms: concretions

Type of: action, activity, concentration, conjugation, jointure, natural action, natural process, rock, stone, unification, union, uniting

Encyclopedia: Concretion