Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Resembling platinum.
  • n. An alloy of copper, nickel, tungsten, and zinc, formerly used in electric coils.
  • n. A metal chemically resembling platinum, especially osmium, iridium, or palladium.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Of or resembling platinum
  • n. Any of several metals that resemble platinum in their chemistry; especially osmium, iridium and palladium
  • n. An alloy of copper, nickel, tungsten, and zinc once used in heating elements

from the GNU version of the Collaborative International Dictionary of English

  • adj. Resembling platinum.
  • n. An alloy of German silver containing tungsten; -- used for forming electrical resistance coils and standards.

from The Century Dictionary and Cyclopedia

  • n. One of the metals with which platinum is invariably found associated. The platinoids are palladium, rhodium, iridium, osmium, and ruthenium.
  • n. An alloy, resembling German silver, composed of 60 parts copper, 14 parts nickel, 24 parts zinc and 1 to 2 parts tungsten. It has a greater resistance than German silver, and it is used largely in electrical work.

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