Final answer:
In mathematics, window width refers to the measurement of the extent of something along its horizontal dimension. It is commonly used to describe the size or dimensions of a window or an object.
Step-by-step explanation:
In mathematics, window width refers to the measurement of the extent of something along its horizontal dimension. It is commonly used to describe the size or dimensions of a window or an object. For example, if a rectangular window has a width of 1.25 cm, it means that the distance between its left and right sides is 1.25 cm.