palladium

en-noun

palladium (countable and uncountable, plural palladiums)

The element was named after Pallas, an asteroid that had been discovered two years before the element.

A chemical element (symbol Pd) with an atomic number of 46: a rare, lustrous silvery-white metal.


palladium

la-noun

palladium n (genitive palladiī); second declension

palladiī (genitive)
palladium (nominative singular)
palladia (nominative plural)
palladiī (genitive singular)
palladiōrum (genitive plural)
palladiō (dative singular)
palladiīs (dative plural)
palladium (accusative singular)
palladia (accusative plural)
palladiō (ablative singular)
palladiīs (ablative plural)
palladium (singular vocative)
palladia (plural vocative)

[pälˈlʲäd̪iʊ̃ˑ]

From Ancient Greek παλλάδιον (palládion), neuter of παλλάδιος (palládios), Παλλάς (Pallás, “of Pallas”). See Pallas.

palladium, one of perhaps several statues of Athena, as in the Iliad and Aeneid, believed to safeguard Troy, and later, various Italian cities


palladium hydride

(chemistry) A form of metallic palladium that has adsorbed a substantial amount of elemental hydrogen into the interstices of its structure.


organopalladium

(organic chemistry) Describing any organic compound containing a carbon to palladium bond


palladate

(inorganic chemistry) Any of several oxyanions of palladium, or the corresponding salts


polarite

The Polar Ural Mountains in Russia, where it is found, and -ite.

(mineralogy) An opaque, yellow-white mineral with a metallic lustre, having the chemical formula (Pd,(Bi,Pb)).


palladacycle

(organic chemistry) Any of several groups of organometallic heterocycles containing an atom of palladium in the ring; they are used as coupling catalysts


allylpalladium

(organic chemistry) Any allyl organometallic compound of palladium.


palladiferous

en-adj

palladiferous (comparative more palladiferous, superlative most palladiferous)

more palladiferous (comparative)
most palladiferous (superlative)


verbeekite

(mineralogy) A monoclinic black mineral containing palladium and selenium.


oosterboschite

(mineralogy) An orthorhombic black mineral containing copper, palladium, and selenium.


rhodarsenide

Named after its chemical composition of rhodium and arsenic.
From rhodo- + arsenide.

(mineralogy) An orthorhombic brown mineral containing arsenic, palladium, and rhodium.


temagamite

(mineralogy) An orthorhombic gray mineral containing mercury, palladium, and tellurium.


dipalladium

(inorganic chemistry, in combination) Two palladium atoms in a molecule


palladous

(inorganic chemistry) Relating to palladium with an oxidation number of 2


palladiumize

en-verb

palladiumize (third-person singular simple present palladiumizes, present participle palladiumizing, simple past and past participle palladiumized)

palladiumizes (present singular third-person)
palladiumizing (participle present)
palladiumized (participle past)
palladiumized (past)


palladium black

A coarse, sponge-like form of elemental palladium that offers a large surface area for hydrogen adsorption and can be used as a catalyst for hydrogenation reactions.


acetoxypalladation

Measurements of deuterium kinetic isotope effects suggest that C–H bond breaking is not the rate-limiting step and that the acetoxypalladation of the allene moiety is the first irreversible step.

2015 July 22, Javier Mazuela, Debasis Banerjee, Jan-E. Bäckvall, “Palladium(II)-Catalyzed Tandem Oxidative Acetoxylation/ortho C–H Activation/Carbocyclization of Arylallenes”, in Journal of the American Chemical Society, volume 137, →DOI:

(organic chemistry) A reaction in which an acetoxy group and a palladium atom are attached across a double bond (typically as the first step in another reaction)


alkylpalladium

(organic chemistry) Any alkyl organometallic compound of palladium


palladide

(inorganic chemistry) Any binary compound of palladium and a more electropositive metal


tetrapalladium

(chemistry, in combination) Four atoms of palladium in a chemical compound.


palađi

[paː˧˧ laː˧˧ ʔɗi˧˧]

[ʔɓaː˧˧ laː˧˧ ʔɗi˧˧]

[paː˧˧ laː˧˧ ʔɗɪj˧˧]

[ʔɓaː˧˧ laː˧˧ ʔɗɪj˧˧]

[paː˧˧ laː˧˧ ʔɗɪj˧˧]

[ʔɓaː˧˧ laː˧˧ ʔɗɪj˧˧]

Ultimately from Latin palladium, with the suffix -um removed as with most chemical elements.


pentapalladium

(chemistry, in combination) Five palladium atoms or ions in a compound (Pd₅).


Heck reaction

Named after Richard F. Heck, who with others received the 2010 Nobel Prize in Chemistry for its discovery and development.

(organic chemistry) The reaction of an unsaturated halide (or triflate) with an alkene in the presence of a base and a palladium catalyst to form a substituted alkene.


паладій

uk-noun

пала́дій<sg>

пала́дій • (paládij) m inan (genitive пала́дію, uncountable, relational adjective пала́дієвий)

пала́дій (canonical)
paládij (romanization)
пала́дію (genitive)
пала́дієвий (adjective relational)
пала́дій (nominative singular)
пала́дію (genitive singular)
пала́дію (dative singular)
пала́дієві (dative singular)
пала́дій (accusative singular)
пала́дієм (instrumental singular)
пала́дію (locative singular)
пала́дії (locative singular)
пала́дію (singular vocative)

uk-ndecl

пала́дій<sg>


palladium nitrate

(inorganic chemistry) A nitrate compound of palladium with the chemical formula Pd(NO₃)₂.