direct variation

noun

1

: mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other

2

: an equation or function expressing direct variation compare inverse variation

Word History

First Known Use

circa 1949, in the meaning defined at sense 1

Kids Definition

direct variation

noun

1

: mathematical relationship between two variables which can be expressed by an equation in which one variable is equal to a constant times the other

2

: an equation or function expressing direct variation compare inverse variation sense 2