Popsicle!

I've been going through the 4th edition of the official Scrabble dictionary pretty thoroughly, and I was shocked to find that popsicle was not in there. I certainly don't spell it with a capital letter - any cold icewater thingy is a popsicle to me. But, according to Wikipedia, the actual item - that Popsicle is a brand name for - is ice pop. So, no using popsicle - I mean Popsicle - in a game of scrabble.