Palladious
Pal`la´di`ous
(păl`lā´dĭ`ŭs) a. 1. (Chem.) Of, pertaining to, or containing, palladium; - used specifically to designate those compounds in which palladium has a lower valence as compared with palladic compounds.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.