The *(term) for a sentence that describes itself. Named after their inventor _("W. V. Quine" | http://www.wvquine.org/), in a programming setting, the are programs that output their own source code. Here are a few pages on Quines: _(David Madore's | http://www.eleves.ens.fr:8080/~madore/computers/quine.html), _(Gary Thompson's | http://www.nyx.net/~gthompso/quine.htm), _(Ben Olmstead's | http://www.mines.edu/students/b/bolmstea/quines/), _(Craig S. Kaplan's | http://www.cs.washington.edu/homes/csk/paper/). Note also the quines in Ken Thompson's _(Turing Award lecture | http://cm.bell-labs.com/who/ken/trust.html).
