The Collaborative International Dictionary of English v.0.48:
Oxychloric \Ox`y*chlo"ric\, a. [Oxy (a) + chloric.] (Chem.) (a) Of, pertaining to, or designating in general, certain compounds containing oxygen and chlorine. (b) Formerly designating an acid now called perchloric acid. See Perchloric. [1913 Webster]WordNet (r) 3.0 (2006):
perchloric acid n 1: a powerful oxidizing agent; forms perchlorates