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platiniridium

American  
[plat-n-i-rid-ee-uhm, -ahy-rid-] / ˌplæt n ɪˈrɪd i əm, -aɪˈrɪd- /

noun

  1. a natural alloy composed chiefly of platinum and iridium.

platiniridium British  
/ ˌplætɪnɪˈrɪdɪəm /

noun

  1. any alloy of platinum and iridium: used in jewellery, electrical contacts, and hypodermic needles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of platiniridium

First recorded in 1865–70; platin(um) + iridium

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.