Yep, what The Ancient Geek said. Sorry I didn't reply in a timely way - I'm not a regular user. I'm glad you basically agree, and pardon me for using such a recherche word (did I just do it again?) needlessly. Philosophical training can do that to you; you get a bit blind to how certain words are, while they could be part of the general intellectual culture, actually only used in very specific circles. (I think 'precisification' is another example of this. I used it with an intelligent nerd friend recently and, while of course he understood it - it's self explanatory - he thought it was terrible, and probably thought I just made it up.)

Hope you look at Wittgenstein!

As in ostention, basically pointing, or a verbal substitute.