This is the accepted method of defining both the location and the access method for an information object. It is typically used by Internet browsers to locate and retrieve a remote file from a remote server. Every individual file available from the Internet has a unique URL. The URL for this Dictionary is:
The part before the colon indicates the access method -- in this case HTTP (the most common alternative is FTP). The two slashes indicate that the next part is the name of the server/domain; and the rest of the URL is the path to the individual file on that server. It can optionally point to a specified marker within the file by appending #markername.