For the use of the name "Matrix" in reference to a person, character, organization or product, see Matrix (name). A matrix is used to describe an array or grid. An archaic usage is a breeding animal or a womb. Matrix may refer to: [edit] Science and mathematics - Matrix (mathematics), a mathematical object generally represented as an array of numbers
- Matrix (biology), with numerous meanings, often referring to a biological material where specialized structures are formed or embedded
- Matrix (archeology), the soil or sediment surrounding a dig site
- Harris matrix, an archaeological tool used to describe sediment deposition over time
- Matrix (chemical analysis), the discarded portion of a sample used for chemical analysis
- Matrix (geology), the fine grains between larger grains in igneous or sedimentary rocks
- Matrix isolation, a continuous solid phase in which particles (precipitates, etc.) are embedded
- Metal matrix composite, a type of composite material
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