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platinoid

 - 2 dictionary results

plat⋅i⋅noid

  [plat-n-oid]
Use platinoid in a Sentence
–adjective
1. resembling platinum: the platinoid elements.
–noun
2. any of the metals, as palladium or iridium, with which platinum is commonly associated.
3. an alloy of copper, zinc, and nickel, to which small quantities of such elements as tungsten or aluminum have been added.
Origin:
1860–65; platin(um) + -oid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To platinoid
plat·i·noid   (plāt'n-oid')   
adj.  Resembling platinum.
n.  

  1. An alloy of copper, nickel, tungsten, and zinc, formerly used in electric coils.

  2. A metal chemically resembling platinum, especially osmium, iridium, or palladium.

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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