1.   (operating system)   The Unix superuser account (with user name "root" and user ID 0) that overrides file permissions. The term avatar is also used. By extension, the privileged system-maintenance login on any operating system.

See root mode, go root, wheel.

[Jargon File]

Last updated: 1994-10-27

2.   (operating system)   root directory.

Last updated: 1996-11-21

3.   (data)   root node.

Last updated: 1998-11-14