mutable variable

noun
UK /ˈmjuːtəbl ˈveəriəbl/
US /ˈmjuːtəbl ˈveriəbl/

A mutable variable is a box that holds a value you are allowed to change later.

In the game, the score is a mutable variable, so it can go up when you win points.


OTHER MEANINGS

2. In programming, a named storage location whose stored value can be updated during the program's run.

The loop uses a mutable variable to count from one to ten.

3. In mathematics and logic, a symbol that may stand for different values within a given context.

In the equation, x is a mutable variable that can take any number.

4. A factor or quantity that is able to change over time.

Temperature is a mutable variable in the experiment.