Medical Definition of calcification
1: impregnation with calcareous matter: asa: deposition of calcium salts within the matrix of cartilage often as the preliminary step in the formation of bone—compare ossification 1ab: abnormal deposition of calcium salts within soft tissue often causing thickening or hardening
2: a calcified structure or part; also : an abnormal deposit of calcium salts <arterial calcifications>
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