Noun
Any statue of the goddess Pallas; esp., the famous statue on the preservation of which depended the safety of ancient Troy.
Hence: That which affords effectual protection or security; a sateguard; as, the trial by jury is the palladium of our civil rights.
A rare metallic element of the light platinum group, found native, and also alloyed with platinum and gold. It is a silver-white metal resembling platinum, and like it permanent and untarnished in the air, but is more easily fusible. It is unique in its power of occluding hydrogen, which it does to the extent of nearly a thousand volumes, forming the alloy Pd2H. It is used for graduated circles and verniers, for plating certain silver goods, and somewhat in dentistry. It was so named in 1804 by Wollaston from the asteroid Pallas, which was discovered in 1802. Symbol Pd. Atomic weight, 106.2.
Source: Webster's dictionaryI have had this view of the optimization of the electrode design for a long time. Historically we went through various phases in the work and eventually worked on large sheets - very large sheets - of palladium. Martin Fleischmann
The liberty of the press is the palladium of all the civil, political, and religious rights of an Englishman. Junius
Ostalgie [≈ "East German Nostalgia”] is not my kind of thing. To some, the GDR appears in a backward-looking bleary-eyed view as a palladium of social security. In truth, the GDR collapsed not least because, being economically inefficient, it could not finance its social promises. Günter Schabowski
My biggest regret is that my mother didn't see me walk on to that London Palladium stage, being the star she always wanted me to be. But I always say that when she reached Heaven, she had a word with a few agents. Bruce Forsyth
I've done seven shows at the Palladium - long running shows I'm talking about. Norman Wisdom
A large number of carbon–carbon bonding reactions in organic chemistry (such as the Heck reaction and Suzuki coupling ) are facilitated by palladium compound catalysts. Source: Internet