👉 Gonality is a mathematical concept in algebraic geometry, which deals with the properties of curves and surfaces that are invariant under certain transformations. The term "gonality" refers to the property of being invariant under certain transformations (such as translations, rotations, or scaling) that defines the geometry of these objects. In other words, a curve or surface is said to be gonogenous if it remains unchanged by any transformation that preserves its shape and orientation. This means that the curve or surface can be