Word.ws English Dictionary

Plural of matrix

irregular plural

The plural of matrix is matrices or matrixes.

Forms of matrix

Singularmatrix /ˈmeɪ.tɹɪks/
Pluralmatrices /ˈmeɪtɹɪsiːz/
matrixes
Countablecountable

Matrices and matrixes in a sentence

  • Theorem (7.5.2) then says that every positive semidefinite matrix is a convex combination of matrices that lie on extreme rays.1987, [1985], Roger A. Horn, Charles R. Johnson, Matrix Analysis, Paperback edition, Cambridge University Press, published 1990, page 464
  • A pair of matrices share the same set of eigenvectors if and only if they commute.From the entry commute
  • Hermitian matrices have real diagonal elements as well as real eigenvalues.From the entry Hermitian matrix
  • Human lung fibroblasts are able to grow into 3D collagenated and stiffened matrices under specific conditions.2015 July 1, Vanesa Vicens-Zygmunt et al., “Fibroblast viability and phenotypic changes within glycated stiffened three-dimensional…. From the entry collagenated
  • We then turn to applications of population projection matrices both for natural resource management and for conservation.2013, John H. Vandermeer, Deborah E. Goldberg, Population Ecology: First Principles, 2nd edition, Princeton University Press, page 62. From the entry projection matrix

Meaning of matrix

  1. noun The cavity or mold in which anything is formed.
  2. noun The womb.
  3. noun The metaphorical place where something is made, formed, or given birth.

Full definition of matrix

Nouns ending in -ix: plural -ices

Questions about the plural of matrix

What is the plural of matrix?
The plural of matrix is matrices or matrixes.
Which is correct, matrices or matrixes?
Both are used. matrices is the more common of the two in English writing.
Is matrix countable?
Matrix is a countable noun.

Source and license

Adapted from Wiktionary: matrix (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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