Definitions for "XTerm"
The X-Terminal application allows you to type commands into your shell and run programs. This is the most useful X application. Many versions of this exist (e.g. kterm, gnome-terminal, rxvt).
A terminal emulation program for the X Window System. Allows the user to have several different invocations of xterm running at once on the same display, each of which provides independent input and output for the process running in it.
Is an X-Windows terminal or the emulation mode of an X-Windows terminal.