AIDS stands for Acquired Immune Deficiency Syndrome: 1  Acquired means you can get infected with it; 2  Immune Deficiency means a weakness in the body's system that fights diseases. 3  Syndrome means a group of health problems that make up a disease.
Vector animation is a term used to refer to animation in which the art or motion is controlled by vectors rather than pixels. Vector animation often allows cleaner, smoother animation because images are displayed and resized using mathematical values instead of stored pixel values.
A vector graphic is a type of image. Vector images are graphical representations of mathematical objects such as lines, curves, polygons and its like. These graphics are generated by computer and they follow x and y axis as their reference definition. One characteristic of vector graphics is a very high resolution. Such images can be altered easily and their resolution per square pixel remains intact at any level. Common image formats like GIFs and JPEGs are the opposite -- these bitmap images are pixel-based and so can't be resized without losing quality.