If we know this little about the word, then there's no real need for a whole damn entry, is there? Especially since the only way I can imagine someone getting here is from the main Excruciator article.
In any case, without context, it seems like the most likely explanation is that it's a rhetorical reference to the Ilwrath military in general. It seems unlikely that an "excruciator" (literal meaning something like a torturer) would be a special rank of officer involved in an attack, and in any case the attack is full-scale and probably involves all levels of the military.
I think it's important to note that the term is also used to signify something else than the Ur-Quan device. It wouldn't be a complete encyclopedia without it. A separate article is the obvious way to show this; a footnote in the other Excruciator article would just get lost. -- SvdB 20:48, 13 Mar 2005 (CET)