ISMAP (World-Wide Web) An attribute of the {HTML} tag <IMG> (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://utirc.utoronto.ca/HTMLdocs/NewHTML/image.html). (1995-02-14)