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Medical Dictionary

matrix

play
noun ma·trix \ˈmā-triks\

Medical Definition of matrix

plural matrices \ˈmā-trə-ˌsēz also ˈma-\play or matrixes

  1. 1a:  the extracellular substance in which tissue cells (as of connective tissue) are embedded <mineralization of bone matrix>b:  the thickened epithelium at the base of a fingernail or toenail from which new nail substance develops—called also nail bed, nail matrix

  2. 2:  something (as a surrounding or pervading substance or element) within which something else originates or takes form or develops

  3. 3:  a mass by which something is enclosed or in which something is embedded <membrane-bound organelles suspended in the cytoplasmic matrix> <chromatin fibers attach to the nuclear matrix>

  4. 4a:  a strip or band placed so as to serve as a retaining outer wall of a tooth in filling a cavityb:  a metal or porcelain pattern in which an inlay is cast or fused

  5. 5:  the substrate on or within which a fungus grows





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