- a variable in a functional relation whose value is determined by the values assumed by other variables in the relation, as y in the relation y = 3x2.
- (in an experiment) the event studied and expected to change when the independent variable is changed.
- a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable
- the variable measured by the experimenter. It is controlled by the value of the independent variable, of which it is an index
