From the ArcaMax Publishing, Vocabulary Newsletter:
http://www.arcamax.com/news/vocabulary/s-360482-927228
contradistinction \kon-truh-dis-TINK-shuhn\ (noun) - Distinction by
contrast; as, "sculpture in contradistinction to painting."
"The balloon, for the twenty-two days of its existence, offered the
possibility, in its randomness, of mislocation of the self, in
contradistinction to the grid of precise, rectangular pathways under
our feet." -- by Donald Barthelme, 'Sixty Stories'
Contradistinction is contra-, from Latin contra, "against" +
distinction, from Latin distinctio, from distinguere, "to
distinguish."