concretion Meaning and Definition
1. n. the union of diverse things into one body or form or group; the growing together of parts
2. n. an increase in the density of something
3. n. a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body
4. n. the formation of stonelike objects within a body organ (e.g., the kidneys)
A concretion is a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil.
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