>Nazism - The belief ( on pseudoscience i may add )that other races ( a term that has no scientific basis ) are only worthy of extermination ( death, MDK )

I would correct that.

Nazis didn't wholly think that. Not all races where "worthy of extermination". For example, black people in the Reich were largely ignored as a non-problem and left to their own devices and people from the Middle-East were recruited as part of the armed forces. "Honorary Aryan" is a thing they did too when someone proved to be useful (Japanese have been declared as such). Just a short history FYI.

Racism is the more correct term, believing any human inferoir based on their race, and some racists demand extermination. Nazis are a specific subgroup of racists.