Definition - What does Image Map mean?
An image map is positional information XHTML and HTML which has details of coordinates related to a unique image. Unlike a normal image link where the entire area of image is linked to a single destination, an image map is created to hyperlink sections in image to different destinations. Image maps provide a convenient way of linking different sections of an image without the need to create image files for the image.
An image map is also known as a clickable image map.
Techopedia explains Image Map
Applications are available for creating image maps easily and quickly such as KImageMap Editor. Image maps are widely used on many websites; however, they can cause accessibility issues. Hence, they should be used only in appropriate places.