matrix

n.A mold, especially one made by impression.A metal master used to press phonograph records.An array of elements.

Notes

In printing, matrix1 generally means the thing that holds the ink to be transferred to the printed surface. For example, a matrix used to make a dye transfer print or Woodburytype is a shallow, three-dimensional relief formed in hardened gelatin. - A matrix2 can be used as a stamper to produce pressings or as a mother to produce a stamper.