A vector graphic is a type of digital image that is created using mathematical equations rather than a grid of pixels. They are made up of individual geometric shapes such as points, lines and curves. This means that vector graphics can be scaled up or down in size without losing any image quality, unlike raster graphics which become pixelated when scaled beyond their original size. Vector graphics are commonly used in graphic design, illustration and typography, and are used to create logos, icons, and other design elements. Examples of common vector graphic file formats include SVG, AI, and EPS.

More about SVGs here