General Science

  • noun a shiny metallic element that resembles platinum used as a catalyst and in electrical contacts, jewellery, dental fillings and medical instruments

Cars & Driving

  • noun a white, ductile, malleable, noble metal of the platinum family; atomic number 46, atomic weight 106.4; resembles platinum and together with other platinum metals is used as a catalyst in automotive exhaust converters.


  • A silver-white chemical element whose atomic number is 46. It does not tarnish in air, and when finely divided can absorb about 900 times its own volume of hydrogen. It has about 30 known isotopes, of which 6 are stable. Its applications in electronics include its use in electric contacts, relays, switches, lasers, and superconductors. Its chemical symbol is Pd.
  • chemical symbolPd


  • (written as Palladium)
    The name by which the London Palladium Theatre is usually known.In this Soho theater, top stars from both sides of the Atlantic haveperformed in variety; they include Max Miller, Frankie Howerd,Ken Dodd, Judy Garland, Liza Minnelli, Bing Crosby, Danny Kaye, BobHope, and Jack Benny. The theater became a household word in the 1960swith the popular TV variety show, Sunday Night at the London Palladium.It has often been the venue for the Royal Variety Show. The criticAlan Brien once described it as the only London theater that BertoltBrecht would have enjoyed.

    The Palladium was built in Argyll Street in 1910 by the circusmanager Charles Hengler, who had staged his Grand Cirque on the sitesince 1871. He named the theater on the false assumption that thePalladium of classical legend (a statue of Pallas Athena removed fromTroy by the victorious Greeks) was a circus like the Roman Colosseum.

    The theater had the largest seating capacity in London (2306)and drew big audiences for its revues, variety bills, and musicals.Its first great success was The Whirl of the World (1924),with the comedienne Nellie Wallace. The Crazy Gang firstappeared together in a show at the Palladium in 1932. Barrie's PeterPan was presented every Christmas from 1930 to 1938. The musicalBarnum (1981) ran for over two years and carried the highestinsurance (£5 million) of any show in British theatrical history. Itsstar, Michael Crawford, who had to walk the high wire and slide down a ropefrom the theater's highest box, was himself insured for £3 million.Sam Mendes's much praised revival of Oliver! opened in 1994and Adrian Noble's spectacular stage version of Chitty Chitty BangBang in 2002; the latter ran until 2005, making it the Palladium's most successful ever production. Subsequent shows include Andrew Lloyd Webber's revival of The Sound of Music (2006 - 08) andSister Act the Musical (2009 - ).


  • noun a type of blister and vomiting agent.