state variable

noun
UK /steɪt ˈveəriəbl/
US /steɪt ˈveriəbl/

A state variable is a number or fact that tells you what condition something is in right now.

The temperature is a state variable that tells us how hot the water is.


OTHER MEANINGS

2. In computer programming, a state variable is a stored value that remembers information about a program while it runs.

The game keeps the player's score in a state variable.

3. In physics and engineering, a state variable is a quantity that describes the current condition of a system, like pressure or volume.

Pressure and temperature are state variables of the gas in the tank.

4. In control systems, a state variable is one of a set of values that together describe the full condition of a system at a given moment.

The robot's position and speed are state variables used to steer it.