The Free On-line Dictionary of Computing (30 December 2018):

vector graphics

    (Sometimes called "object-oriented" graphics,
   though it's nothing to do with object-oriented programming).
   The representation of separate shapes such as lines, polygons
   and text, and groups of such objects, as opposed to bitmaps.
   The advantage of vector graphics ("drawing") programs over
   bitmap ("paint") editors is that multiple overlapping elements
   can be manipulated independently without using differenet
   layers for each one.  It is also easier to render an object at
   different sizes and to transform it in other ways without
   worrying about image resolution and pixels.

   (2001-02-06)