palladium

• POS: Noun
• HYPHEN: pal=la=di=um

CIDE DICTIONARY

palladium, n. [L., fr. Gr. Palla`dion, fr. Palla`s, Palla`dos, Pallas.].

•  Any statue of the goddess Pallas; esp., the famous statue on the preservation of which depended the safety of ancient Troy.  [1913 Webster]
•  That which affords effectual protection or security; a safeguard; as, the trial by jury is the palladium of our civil rights.  Blackstone.  [1913 Webster]

palladium, n. [NL.].

 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, with a melting point of 1555Pd2H. 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 number, 46. Atomic weight, 106.42. Density 12.0.  [1913 Webster]

OXFORD DICTIONARY

palladium, n. Chem. a white ductile metallic element occurring naturally in various ores and used in chemistry as a catalyst and for making jewellery.

Usage

Symb.: Pd.

palladium, n. (pl. palladia) a safeguard or source of protection.

Etymology

ME f. L f. Gk palladion image of Pallas (Athene), a protecting deity

THESAURUS

palladium

aegis, arm guard, backstop, buffer, bulwark, bumper, contraceptive, copyright, crash helmet, cushion, dashboard, dodger, face mask, fender, finger guard, foot guard, fuse, goggles, governor, guard, guardrail, hand guard, handrail, hard hat, helmet, insulation, interlock, knee guard, knuckle guard, laminated glass, life preserver, lifeline, lightning conductor, lightning rod, mask, mudguard, nose guard, pad, padding, patent, pilot, preventive, prophylactic, protective clothing, protective umbrella, safeguard, safety, safety glass, safety plug, safety rail, safety shoes, safety switch, safety valve, screen, seat belt, shield, shin guard, sun helmet, umbrella, windscreen, windshield

ROGET THESAURUS

palladium

Safety

N safety, security, surety, impregnability, invulnerability, invulnerableness, danger past, danger over, storm blown over, coast clear, escape, means of escape, blow valve, safety valve, release valve, sniffing valve, safeguard, palladium, guardianship, wardship, wardenship, tutelage, custody, safekeeping, preservation, protection, auspices, safe-conduct, escort, convoy, guard, shield, guardian angel, tutelary god, tutelary deity, tutelary saint, genius loci, protector, guardian, warden, warder, preserver, custodian, duenna, chaperon, third person, watchdog, bandog, Cerberus, watchman, patrolman, policeman, cop, dick, fuzz, smokey, peeler, zarp, sentinel, sentry, scout, garrison, guardship, refuge &c, anchor, precaution, quarantine, cordon sanitaire, confidence, protect, take care of, preserve, cover, screen, shelter, shroud, flank, ward, guard, secure, entrench, intrench, fence round, house, nestle, ensconce, take charge of, escort, convoy, garrison, watch, mount guard, patrol, make assurance doubly sure, take up a loose thread, take precautions, double reef topsails, seek safety, take shelter, find shelter, Adj, safe, secure, sure, in safety, in security, on the safe side, under the shield of, under the shade of, under the wing of, under the shadow of one's wing, under cover, under lock and key, out of danger, out of the woods, out of the meshes, out of harm's way, unharmed, unscathed, on sure ground, at anchor, high and dry, above water, unthreatened, unmolested, protected, cavendo tutus, panoplied, snug, seaworthy, weatherproof, waterproof, fireproof, defensible, tenable, proof against, invulnerable, unassailable, unattackable, impenetrable, impregnable, imperdible, inexpugnable, Achillean, safe and sound, scathless, unhazarded, not dangerous, unthreatening, harmless, friendly (cooperative), protecting, protective, guardian, tutelary, preservative, trustworthy, ex abundanti cautela, with impunity, all's well, salva res est, suave mari magno, a couvert, e terra alterius spectare laborem, Dieu vous garde.