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