palladium
a ductile malleable silvery-white element of the platinum metal group occurring principally in nickel-bearing ores: used as a hydrogenation catalyst and, alloyed with gold, in jewellery. Symbol: Pd; atomic no.: 46; atomic wt.: 106.42; valency: 2, 3, or 4; relative density: 1202; melting pt.: 1555°C; boiling pt.: 2964°C
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
palladium
[pə′lād·ē·əm] (chemistry)
A chemical element, symbol Pd, atomic number 46, atomic weight 106.4.
(metallurgy)
A white, ductile malleable metal that resembles platinum and follows it in abundance and importance of applications; does not tarnish at normal temperatures.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
palladium
a “safeguard”; Troy believed safe while statue of Pallas Athene remained. [Gk. Lit.: Iliad; Espy, 40]
Palladium
colossal statue whose presence insured Troy’s safety. [Rom. Legend: Brewer Dictionary, 796]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.
palladium
A silvery metal similar to platinum. Palladium was the original name of Microsoft's security platform (see NGSCB).Copyright © 1981-2025 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
Palladium
(Pd), a chemical element in Group VIII of the Mendeleev periodic system. Atomic number, 46; atomic weight, 106.4. A heavy refractory metal. (SeePLATINUM METALS.)
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.