Ah OK. If we're talking definitions then indeed; as far as I'm concerned discriminating based on cultural norms of a specific country is still racism.
I can imagine that in the US racism more commonly concerns the traditional notion of race but in Europe, where race and nationality are usually synonymous for all intents and purposes, a workable definition needs to be a bit broader.
I double checked it on Wikipedia just to get a second opinion and this is what they have to say about it:
> Some definitions of racism also include discriminatory behaviors and beliefs based on cultural, national, ethnic, caste, or religious stereotypes
