Definition: 'a.jsp' refers to an application-specific Java Web Start (JSP) file, often used for displaying web pages. The file is embedded within the HTML page and serves as a starting point for JSP applications. It includes various components including scripts, templates, and stylesheets. The definition of 'a.jsp' can be quite broad, considering its use in a wide range of scenarios - from simple page rendering to more complex applications that require dynamic content or advanced server-side scripting capabilities.