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1. (mathematics) a rectangular array of quantities or expressions set out by rows and columns; treated as a single element and manipulated according to rules
    
2. (geology) amass of fine-grained rock in which fossils, crystals, or gems are embedded
    
3. An enclosure within which something originates or develops (from the Latin for womb)
    
4. The body substance in which tissue cells are embedded
   - intercellular substance, ground substance
    
5. The formative tissue at the base of a nail
    
6. Mould used in the production of phonograph records, type, or other relief surface

Derived forms: matrices, matrixes

Type of: animal tissue, array, body substance, cast, enclosure, mold [N. Amer], mould [Brit, Cdn], natural enclosure, rock, stone

Part of: bone, cartilage, connective tissue, gristle, nail, os[2]

Encyclopedia: Matrix Matrix, the