username

username

The name you use to identify yourself when logging into a computer system or online service. Both a username (user ID) and a password are required. In an Internet e-mail address, the username is the left part before the @ sign. For example, KARENB is the username in karenb@mycompany.com. AOL calls a username a "screen name."

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username

Computing a name that someone uses for identification purposes when logging onto a computer, using chatrooms, or as part of his or her e-mail address

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username [′yüz·ər‚nām]

(computer science)

mailbox name