Race and racism: why does European law have difficulties with definitions?

Within Europe, a number of legislative instruments provide protection against racism and race/racial discrimination, but definitions of the terms race and racism are mostly absent from these instruments. This paper examines the different terms used in the different instruments and the definitions given. Particular attention is given to the question as to whether the grounds mentioned can be extended to cover discrimination based on race/racial or ethnic origin, colour, descent, nationality, national origin and religion or belief. Another question discussed is whether common definitions/interpretations of the terms race, racism and racial discrimination should exist in Europe and, if so, from which source these should be drawn.