matrix
nounUK /ˈmeɪtrɪks/
US /ˈmeɪtrɪks/
A matrix is a grid of numbers or things arranged in rows and columns.
The teacher showed us a matrix with three rows and two columns.
OTHER MEANINGS
2. The place or material in which something develops or is formed.
The soil is the matrix in which the seeds grow.
3. A mold or shaped space in which something is cast or shaped.
They poured the metal into a matrix to make the part.
4. The intercellular substance of a tissue in biology.
Bone cells sit inside a hard matrix.
5. A system of lines or channels in a computer or network.
The printer uses a dot matrix to form letters.