MATRIX

Definition

1. noun (mathematics) a rectangular array of quantities or expressions set out by rows and columns.
2. noun (geology) a mass of fine-grained rock in which fossils, crystals, or gems are embedded.
3. noun an enclosure within which something originates or develops (from the Latin for womb).
4. noun the body substance in which tissue cells are embedded. — synonyms: intercellular_substance, ground_substance
5. noun the formative tissue at the base of a nail.
6. noun mold used in the production of phonograph records, type, or other relief surface.