ISMAP (World-Wide Web) An attribute of the {HTML} tag (inline image) which specifies that if the image is selected, the {browser} will generate a request indicating the coordinates of the point which was clicked. This request is then interpreted by the server by mapping certain regions of the image to certain actions. {Documentation (http://www.utirc.utoronto.ca/HTMLdocs/NewHTML/image.html)}. (1995-02-14)