Tour results indicate that the difference between enamel and dentin hardness has. nothing to do with the content of Na, Cl and Mg, but the percentage of organic and inorganic. materials in enamel and dentin. Keywords: microhardness, chemical composition, human tooth, enamel, dentin. 1. Introduction.
Medical Definition of metastatic. 1  1: of, relating to, or caused by metastasis cutaneous metastatic disease as the first sign of lung cancer metastatic carcinoma metastatic spread. 2  2: tending to metastasize metastatic cancer cells metastatic prostate cancer.
Metastasis (noun). the act or process by which matter is taken up by cells or tissues and is transformed into other matter; in plants, the act or process by which are produced all of those chemical changes in the constituents of the plant which are not accompanied by a production of organic matter; metabolism.