Mrxvt (previously named as materm) is a lightweight and powerful
multi-tabbed X terminal emulator based on the popular rxvt and
aterm. It implements many useful features seen in some modern X
terminal emulators, like gnome-terminal and konsole, but keep to
be lightweight and independent from the GNOME and KDE desktop
environment. The following are the major features of mrxvt (* are
new features compared with rxvt, + are enhanced features compared
with rxvt):

WWW: http://materm.sourceforge.net/