Skip to main content
matrix

matrix

1 8.2
Fine rock that holds fossils or crystals
  • noun
  • /ˈmeɪtrɪks/
  • Specialized
translation icon : matriz
  • And so those are islands of Obsidian crystal sitting in a matrix of Obsidian glass.

Examples

  • Two hours later, Terri looked at the stringless violin in the block of plastic matrix and laughed.

    Fiction book (1999)
  • One of Miles's fossils is a Stegosaurus mounted in its matrix, priced at $375,000.

    Academic text (1998)
  • The fossil had been freed from its matrix by a recent rockslide.

    Fiction book (1994)
  • Water that is acidic dissolves the cement matrix that binds the aggregate in the concrete, causing the concrete to become weakened.

    Academic text (1998)
  • The gravel particles are nearly inconspicuous in the sand matrix, and the pure-sand fractions contain no marble (see Table II).

    Academic text (2008)
  • Soil erosion results in drastic modifications to the structure as well as the biological and chemical properties of the soil matrix, affecting its productive capacity and ability to sequester atmospheric CO2.

    Academic text (2007)
  • The fossil had been freed from its matrix by a recent rockslide.

  • Near the center were hundreds of brown dots mixed into the matrix.

  • The remainder of the rock is a clay matrix with a heavy brown organic stain.

Synonyms

rock
vsmatrix
1.0

Hard natural stone that you find on the ground or underground

refers to a fine-grained mass that contains embedded fossils or crystals

Compounds

7 3.5

A 1999 science fiction movie about people living in a hidden virtual world

The Matrix
  • Literature
2 7.5

A complex controlled system that shapes what people see and think

correlation matrix
  • Specialized
1 6.8

A table that shows how strongly each pair of variables is related

dot matrix
  • Specialized
1 4.4

A grid of dots that forms letters, numbers, or simple pictures

1 5.7

A printer that makes letters and pictures from small dots

matrix printer
  • Archaic
1 4.5

A machine that makes letters and pictures on paper using dots

matrix multiplication
  • Specialized
1 6.3

A way to multiply two tables of numbers to make a new table

diagonal matrix
  • Specialized
6.0

A square table of numbers that has numbers only from the top left to the bottom right and zeros elsewhere

active matrix screen
  • Specialized
5.1

A screen that uses a small electronic part for each tiny dot to make images sharper and faster

matrix addition
  • Specialized
4.4

Add the numbers in the same places of two matrices to make another matrix

matrix algebra
  • Specialized
6.1

The part of math that studies numbers in rows and columns and how to use them

matrix inversion
  • Specialized
8.6

To find a matrix that, when multiplied by the original, makes the identity matrix

matrix operation
  • Specialized
5.9

A calculation that uses matrices like adding or multiplying them

matrix transposition
  • Specialized
6.7

You switch the rows and columns of a matrix

identity matrix
  • Specialized
6.7

A square table of numbers with ones on the diagonal and zeros elsewhere that acts like one when multiplying matrices

nonsingular matrix
  • Specialized
8.0

A square table of numbers that you can undo by multiplying with another table

real matrix
  • Specialized
5.7

A table of numbers in rows and columns where each number is real

7.4

A screen used in old LCDs where rows and columns of wires control tiny dots and give lower picture quality

scalar matrix
  • Specialized
8.2

A square grid of numbers with the same values on the main diagonal and zeros elsewhere

SWOT matrix
  • Specialized
5.1

A chart that shows a business or project's strengths, weaknesses, opportunities, and threats

singular matrix
  • Specialized
8.8

A square matrix with determinant zero that has no inverse

square matrix
  • Specialized
3.7

A table of numbers with the same number of rows and columns

unit matrix
  • Specialized
5.6

A square table of numbers with ones from the top left to the bottom right and zeros elsewhere

5.2

A machine that prints letters and numbers as small dots using thin wires that hit an ink ribbon

Surface Forms

matrix singular
matrices plural

Etymology

The word matrix comes from Latin matrix, meaning 'womb' or 'source', from mater 'mother'. In geology the matrix is the surrounding rock that holds fossils or gems, like the 'womb' that contains and protects them while they form.