platinum black

noun Chemistry.

a black powder consisting of very finely divided metallic platinum, used as a catalyst, especially in organic synthesis.

QUIZZES

PRACTICE SOME ESCAPISM WITH THIS WORD OF THE DAY QUIZ!

We salute you if you remember all the doovers from Word of the Day between May 25 and May 31!
Question 1 of 7
salute
to call out to in order to stop, attract attention, ask aid, etc.
to wield power; exercise rule.
to express respect or praise for; honor; commend.
TAKE THE QUIZ TO FIND OUT

Origin of platinum black

First recorded in 1850–55

Words nearby platinum black

platinocyanide, platinoid, platinotype, platinous, platinum, platinum black, platinum blonde, platinum disc, platinum metal, platinum-blond, platitude
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for platinum black

platinum black

noun

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