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
   "The student solved the system of equations using matrix algebra"
    
2. An enclosure within which something originates or develops
   "The rock matrix contained several valuable mineral deposits"
    
3. The body substance in which tissue cells are embedded
   "The matrix provides support and nutrition to cells";
   - intercellular substance, ground substance
    
4. The formative tissue at the base of a nail
   "Damage to the nail matrix can result in abnormal nail growth"
    
5. (geology) a mass of fine-grained rock in which fossils, crystals, or gems are embedded
   "The palaeontologist carefully extracted the dinosaur bones from the surrounding matrix"
    
6. Mould used in the production of phonograph records, type, or other relief surface
   "The vinyl record was pressed using a metal matrix"

Derived forms: matrixes, matrices

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