concretions

1. the formation of stonelike objects within a body organ (e.g., the kidneys)Synonyms: concretion

2. a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the bodyExamples: "renal calculi can be very painful"Synonyms: calculus, concretion

3. an increase in the density of somethingSynonyms: compaction, compression, concretion, densification

4. the union of diverse things into one body or form or group; the growing together of partsSynonyms: coalescence, coalescency, coalition, concretion, conglutination