# Independent-variable meaning

The definition of an independent variable is a factor that does not change in value based on other factors.

An example of an independent variable is a temperature that stays constant during a science experiment.

noun
(sciences) The variable that is changed or manipulated in a series of experiments.
noun
A variable whose value determines the value of other variables.
noun
A manipulated variable in an experiment or study whose presence or degree determines the change in the dependent variable.
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A variable whose value may be determined freely without reference to other variables.
noun
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In mathematics, a variable whose value determines the value of other variables. For example, in the formula for the area of a circle, A = π r2 , r is the independent variable, as its value determines the value of the area ( A ).
(algebra) In an equation, any variable whose value is not dependent on any other in the equation.

In the equation z = x2 + y, x and y are the independent variables.

noun