As nouns the difference between ethnocentrism and ethnocentricity
is that ethnocentrism is the tendency to look at the world primarily from the perspective of one's own traditional, deferred, or adoptive ethnic culture while ethnocentricity is practising or the policies surrounding being ethnocentric.
ethnocentrism
Noun
(-)
The tendency to look at the world primarily from the perspective of one's own traditional, deferred, or adoptive ethnic culture.
ethnocentricity
English
Noun
(ethnocentricities)
Practising or the policies surrounding being ethnocentric.
References
*"Damian Green conflates - but with the enthnocentricity typical of so many Conservative theories - two distinct ideas: that forced marriages are wrong; and that holding them to be wrong is a peculiarly British virtue." - British virtues, The Week , 25 August 2007, 628 , 25.