axis

The principal or horizontal axis of a system of coordinates.

The secondary or vertical axis of a system of coordinates.

Refers to the axis that runs from left to right, often representing the independent variable in a graph.

Refers to the axis that runs up and down, often representing the dependent variable in a graph.

The axis in a three-dimensional coordinate system that is perpendicular to the x-axis and y-axis.

The imaginary line around which an object rotates or spins.

A line that divides a shape into two identical halves that are mirror images of each other.

Indicates a position or point located directly on the line of an axis, especially a rotational axis.

Indicates movement or measurement parallel to the line of an axis.