The definition of vector

This term has two common meanings. The first is in the geometric sense: a vector defines a direction and magnitude. The second concerns the formatting of fonts and images. If a font is a vector font or an image is a vector image, it is defined as lines of relative size and direction rather than as collections of pixels (the method used in bitmapped fonts and images). This makes it easier to change the size of the font or image, but puts a bigger load on the device that has to display the font or image. The term "outline font" means the same thing as vector font.