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Definition of matrix
noun (plural matrices /ˈmātrisēz/ or matrixes)
1an environment or material in which something develops; a surrounding medium or structure:free choices become the matrix of human life a mass of fine-grained rock in which gems, crystals, or fossils are embedded. Biology the substance between cells or in which structures are embedded. fine material:the matrix of gravel paths is raked regularly
2a mold in which something, such as printing type or a phonograph record, is cast or shaped. 3 Mathematics a rectangular array of quantities or expressions in rows and columns that is treated as a single entity and manipulated according to particular rules. an organizational structure in which two or more lines of command, responsibility, or communication may run through the same individual.
The plural of matrix
can be spelled either matrices
(like the original Latin) or matrixes