[puh-ley-dee-uh m] /pəˈleɪ di əm/
noun, plural Palladia
[puh-ley-dee-uh] /pəˈleɪ di ə/ (Show IPA)
[puh-ley-dee-on] /pəˈleɪ diˌɒn/ (Show IPA). a statue of Athena, especially one on the citadel of Troy on which the safety of the city was supposed to depend.
(usually lowercase) anything believed to provide protection or safety; safeguard.
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
something believed to ensure protection; safeguard
a statue of Pallas Athena, esp the one upon which the safety of Troy depended
“safeguard,” c.1600, originally (late 14c.) “sacred image of Pallas Athene,” from Latin palladium, from Greek Palladion, noun use of neuter of Palladios “of Pallas.” It stood in the citadel of Troy and the safety of the city was believed to depend on it.
metallic element, coined 1803 by discoverer William Hyde Wollaston (1766-1828), from Pallas, name of an asteroid discovered the previous year (by German astronomer Olbers) and named for the goddess (see Pallas).
palladium pal·la·di·um (pə-lā’dē-əm)
A soft ductile metallic element occurring naturally with platinum, especially in gold, nickel, and copper ores, and used as a catalyst in hydrogenation. Atomic number 46; atomic weight 106.4; melting point 1,555°C; boiling point 2,963°C; specific gravity 12.02 (20°C); valence 2, 3, 4.
A malleable, ductile, grayish-white metallic element that occurs naturally with platinum. It is used as a catalyst in hydrogenation and in alloys for making electrical contacts and jewelry. Atomic number 46; atomic weight 106.4; melting point 1,552°C; boiling point 3,140°C; specific gravity 12.02 (20°C); valence 2, 3, 4. See Periodic Table.
[puh-ley-dee-uh n, -lah-] /pəˈleɪ di ən, -ˈlɑ-/ adjective 1. pertaining to, introduced by, or in the architectural style of Andrea . noun 2. a disciple of Andrea , specifically one of the circle of Lord Burlington in 18th-century England. [puh-ley-dee-uh n] /pəˈleɪ di ən/ adjective 1. of or relating to the goddess Athena. 2. pertaining […]
[puh-ley-dee-uh n, -lah-] /pəˈleɪ di ən, -ˈlɑ-/ noun 1. a window in the form of a round-headed archway with a narrower compartment on either side, the side compartments usually being capped with entablatures on which the arch of the central compartment rests.
[pey-lee-oh-en-sef-uh-lon; especially British pal-ee-] /ˌpeɪ li oʊ ɛnˈsɛf əˌlɒn; especially British ˌpæl i-/ noun, plural paleoencephala [pey-lee-oh-en-sef-uh-luh; especially British pal-ee-] /ˌpeɪ li oʊ ɛnˈsɛf ə lə; especially British ˌpæl i-/ (Show IPA) 1. .
[pey-lee-oh-i-kol-uh-jee or, esp. British, pal-ee-o-] /ˌpeɪ li oʊ ɪˈkɒl ə dʒi or, esp. British, ˌpæl i ɒ-/ noun 1. the branch of dealing with the relations and interactions between ancient life forms and their environment. noun the branch of ecology dealing with fossil plants and animals and their ancient environment Word Origin 1898-1903 Usage Note […]