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.
One way is by the file type. Vector art is usually created in Adobe Illustrator, and is commonly saved with certain file extensions. The four most common Vector file extensions are .ai, .pdf, .eps and .svg. However, just because a file is saved in one of these formats, does not mean that it is truly vector art. Sometimes, people open raster files in Adobe Illustrator, and re-save the file in a vector format, without recreating the art using the vector editing tools.