A huge thanks to commenter Muero for this information. He corrected the mistake I had made in my original sarcastic post about how the dictionary feature of iBooks simply didn’t work in Canada. Apparently, it has nothing to do with how many maple leaves are on your flag, but, rather, what language an eBook is set to. I had to go all the way back into Stanza on my Mac, set the of my eBook to English, and re-import the file into iBooks via iTunes to get the option to download the iBooks dictionary. After a 20 second download I was good to go and was defining words left and right like nobody’s business (Business: biz-nis -noun; none of yours.)
This is opposed to the process in an app like Stanza, where you can look up a word regardless of the language metatags (tested by throwing the same no-lanugage eBook into Stanza).