follow Dictionary.com

Write a Super Short Story to win an iPod!

platinum black

noun, Chemistry
1.
a black powder consisting of very finely divided metallic platinum, used as a catalyst, especially in organic synthesis.
Origin
1850-1855
1850-55
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for platinum black

platinum black

noun
1.
(chem) a black powder consisting of very finely divided platinum metal. It is used as a catalyst, esp in hydrogenation reactions
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
Cite This Source

Word of the Day

Difficulty index for platinum black

Few English speakers likely know this word

Word Value for platinum

12
17
Scrabble Words With Friends