Useful english dictionary. 2012.
Iridious — I*rid i*ous ([ i]*r[i^]d [i^]*[u^]s), a. (Chem.) Of or pertaining to iridium; applied specifically to compounds in which iridium has a low valence. [1913 Webster] … The Collaborative International Dictionary of English
iridious — adjective containing trivalent iridium … Wiktionary
