## Cartesian product

noun

A set of all pairs of elements (x, y) that can be constructed from given sets, X and Y, such that x belongs to X and y to Y.

## cartesian-product

Noun

(*plural* Cartesian products)

- (set theory) The set of all possible pairs of elements whose components are members of two sets. Notation: .
- (databases) All possible combinations of rows between all of the tables listed.