ˈkæl.kjʊ.ləs ˈkæl.kjə.ləs

koʊəˈlɪʃən kɒm.pɹɛʃ.ən the union of diverse things into one body or form or group; the growing together of parts an increase in the density of something 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 the formation of stonelike objects within a body organ (e.g., the kidneys)