Marketscreen.com is an interesting site and it contain a useful guide and description of at least twenty of these indicators and you'll find these in the reference section here: http://www.marketscreen.com/help/atoz/default.asp
I know this doesn’t really answer your question, but I hope it helps.
Doesn't answer my question You would think that the LSE doesn't want Joe punter to have an insight into what the market is doing. MarketScreen is definitely one to add to the favourites list though. Thanks.