Definitions for Palladium
pəˈleɪ di əm; -di əpal·la·di·um

Princeton's WordNetRate this definition:3.0 / 1 vote

1. palladium, Pd, atomic number 46noun

   a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry

WikipediaRate this definition:0.0 / 0 votes

1. Palladium

   Palladium is a chemical element with the symbol Pd and atomic number 46. It is a rare and lustrous silvery-white metal discovered in 1803 by the English chemist William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). They have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. More than half the supply of palladium and its congener platinum is used in catalytic converters, which convert as much as 90% of the harmful gases in automobile exhaust (hydrocarbons, carbon monoxide, and nitrogen dioxide) into nontoxic substances (nitrogen, carbon dioxide and water vapor). Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment, and jewelry. Palladium is a key component of fuel cells, in which hydrogen and oxygen react to produce electricity, heat, and water. Ore deposits of palladium and other PGMs are rare. The most extensive deposits have been found in the norite belt of the Bushveld Igneous Complex covering the Transvaal Basin in South Africa, the Stillwater Complex in Montana, United States; the Sudbury Basin and Thunder Bay District of Ontario, Canada, and the Norilsk Complex in Russia. Recycling is also a source, mostly from scrapped catalytic converters. The numerous applications and limited supply sources result in considerable investment interest.

ChatGPTRate this definition:0.0 / 0 votes

1. palladium

   Palladium is a rare, lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. It is one of the six platinum-group metals and it's used in many industrial processes. Notably, palladium is used in catalytic converters to transform harmful gases from auto exhausts into less harmful substances. It is also used in electronics, medicine, hydrogen purification, and jewelry. On the periodic table of elements, palladium is identified by the symbol Pd and atomic number 46.

Webster DictionaryRate this definition:3.0 / 1 vote

1. Palladiumnoun

   any statue of the goddess Pallas; esp., the famous statue on the preservation of which depended the safety of ancient Troy

2. Palladiumnoun

   hence: That which affords effectual protection or security; a sateguard; as, the trial by jury is the palladium of our civil rights

3. Palladiumnoun

   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

4. Etymology: [NL.]

WikidataRate this definition:0.0 / 0 votes

1. Palladium

   Palladium is a chemical element with the chemical symbol Pd and an atomic number of 46. It is a rare and lustrous silvery-white metal discovered in 1803 by William Hyde Wollaston. He named it after the asteroid Pallas, which was itself named after the epithet of the Greek goddess Athena, acquired by her when she slew Pallas. Palladium, platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals. These have similar chemical properties, but palladium has the lowest melting point and is the least dense of them. Over half of the supply of palladium and its congener platinum goes into catalytic converters, which convert up to 90% of harmful gases from auto exhaust into less-harmful substances. Palladium is also used in electronics, dentistry, medicine, hydrogen purification, chemical applications, groundwater treatment and jewelry. Palladium plays a key role in the technology used for fuel cells, which combine hydrogen and oxygen to produce electricity, heat, and water. Ore deposits of palladium and other PGMs are rare, and the most extensive deposits have been found in the norite belt of the Bushveld Igneous Complex covering the Transvaal Basin in South Africa, the Stillwater Complex in Montana, United States, the Thunder Bay District of Ontario, Canada, and the Norilsk Complex in Russia. Recycling is also a source of palladium, mostly from scrapped catalytic converters. The numerous applications and limited supply sources of palladium result in the metal attracting considerable investment interest.

Chambers 20th Century DictionaryRate this definition:2.5 / 2 votes

1. Palladium

   pal-lā′di-um, n. a statue of Pallas, on the preservation of which the safety of ancient Troy depended: any safeguard: a rare metal in colour and ductility resembling platinum.—adj. Pallā′dian.—v.t. Pallā′diumise, to coat with palladium. [L.,—Gr. palladion—Pallas, Pallados, Pallas.]

The Nuttall EncyclopediaRate this definition:0.0 / 0 votes

1. Palladium

   a statue of Pallas in Troy, on the preservation of which depended the safety of the city, and from the date of the abstraction of which by Ulysses and Diomedes the fate of it was doomed; it was fabled to have fallen from heaven upon the plain of Troy, and to have after its abstraction been transferred to Athens and Argos; it is now applied to any safeguard of the liberty of a State.

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Palladium

   A chemical element having an atomic weight of 106.4, atomic number of 46, and the symbol Pd. It is a white, ductile metal resembling platinum, and following it in abundance and importance of applications. It is used in dentistry in the form of gold, silver, and copper alloys.

The Standard Electrical DictionaryRate this definition:0.0 / 0 votes

1. Palladium

   A metal of the platinum series. It has the highest power of occlusion, q.v., of all metals. It is the characteristic ingredient of non-magnetic watch alloys. Palladium used as an electrode in the electrolysis of water will occlude 936 volumes of hydrogen, and the hydrogen-palladium alloy will exceed in size the original electrode.

MythologyRate this definition:0.0 / 0 votes

1. Palladium

   (Palla′dium). A famous statue of the goddess Pallas (Minerva). She is sitting with a spear in her right hand, and in her left a distaff and spindle. Various accounts are given of the origin of the statue. Some writers say that it fell from the skies. It was supposed that the preservation of the statue would be the preservation of Troy; and during the Trojan War the Greeks were greatly encouraged when they became the possessors of it.

Matched Categories

1. • Metallic Element

Usage in printed sourcesFrom: 

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How to pronounce Palladium?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

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   Fred

   US English

   Tessa

   South African

How to say Palladium in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Palladium in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of Palladium in Pythagorean Numerology is: 8

Examples of Palladium in a Sentence

1. Tai Wong:

   (Palladium is) pretty much all used in gasoline catalyst converters.

2. Junius:

   The liberty of the Press is the Palladium of all the civil, political and religious rights of an Englishman.

3. The Royal:

   This three crystal ring is made of sparkling crystals set on palladium plated metal.

4. Daniel Tarullo:

   I would observe a case could be made that copper is different than palladium and so it is something that would bear revisiting.

Popularity rank by frequency of use

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Palladium
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Palladium
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Palladium
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Palladium
6. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Palladium
7. ^ The Nuttall Encyclopedia
   https://www.gutenberg.org/cache/epub/12342/pg12342-images.html#Palladium
8. ^ The Standard Electrical Dictionary
   https://www.gutenberg.org/cache/epub/26535/pg26535-images.html#:~:text=Palladium
9. ^ Mythology
   https://www.gutenberg.org/cache/epub/42474/pg42474-images.html#:~:text=Palladium
10. ^ Usage in printed sources
    https://books.google.com/ngrams/graph?content=Palladium