matrix

Meanings

1. 1nouncountable

   The conditions, surroundings, or substance in which something develops, grows, or is contained.

   Grammar: Usually singular with an or the: a matrix of support; plural is matrices.

   Patterns

   • a matrix of something
   • in the matrix
   • matrix for something

   Trust is the matrix in which good teams grow.

   Bone cells are embedded in a mineral-rich matrix.

   Schools provide a social matrix for children’s early friendships.

2. 2nouncountablemathematicstechnical

   In mathematics, a rectangular arrangement of numbers or symbols in rows and columns.

   Grammar: Plural is matrices; a matrix can be added, multiplied, or inverted.

   Patterns

   • a matrix of numbers
   • multiply matrices
   • an identity matrix

   Add the corresponding entries in each matrix.

   The data are stored as a matrix with ten rows and four columns.

   A square matrix has the same number of rows and columns.

Word forms

Common combinations

a matrix of cells

The tissue sample showed cells inside a stiff matrix.

social matrix

Family habits form part of a child’s social matrix.

multiply matrices

Students practice how to multiply matrices by hand.

identity matrix

Multiplying by the identity matrix leaves the matrix unchanged.

Synonyms and how they differ

context

Use context for the wider situation around an event; matrix stresses the structure that supports development.

setting

Setting is everyday and general; matrix is more formal and suggests a containing or generating environment.

array

Array can mean an ordered arrangement, but in math matrix is the precise term for rows and columns.

Commonly confused: matrix or matter?

Practice

Make it your own

Write a sentence using “matrix”, then check it and compare it with the examples above.

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