Despite my impression that the Americans are quite laid-back and taking their time, they are quick indeed when it comes to dealing with long words. Any word can be chopped to the most significant syllable(s). It doesn't matter that, what with all the latin in English, many of these words share the same initial syllable (because it's the same latin prefix), they often end up being shortened to it.

Do not be dismayed with their habit to pronounce four or more words of product name and model when talking about their cars, sports or electronic gear - different rules apply in that case.