platinum black

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noun Chemistry.

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

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Origin of platinum black

First recorded in 1850–55

Words nearby platinum black

platinoid, Platinol, platinotype, platinous, platinum, platinum black, platinum-blond, platinum blonde, platinum disc, platinum metal, platitude

How to use platinum black in a sentence

The world that Black Dynamite lives in is not the most PC place to be in.
‘Black Dynamite’ Presents Police Brutality: The Musical|Stereo Williams|January 9, 2015|DAILY BEAST
Music is a huge part of the tone of Black Dynamite overall—going back to the original 2009 movie on which the series is based.
‘Black Dynamite’ Presents Police Brutality: The Musical|Stereo Williams|January 9, 2015|DAILY BEAST
How far has Congress really evolved on race when in 50 years it has gone from one black senator to two?
The Unbearable Whiteness of Congress|Dean Obeidallah|January 8, 2015|DAILY BEAST
Even the arguably more democratic House is only at 10 percent black members.
The Unbearable Whiteness of Congress|Dean Obeidallah|January 8, 2015|DAILY BEAST

But in the case of black women, another study found no lack of interest.
The Unbearable Whiteness of Congress|Dean Obeidallah|January 8, 2015|DAILY BEAST
Suddenly, however, he became aware of a small black spot far ahead in the very middle of the unencumbered track.
The Joyous Adventures of Aristide Pujol|William J. Locke
The lady in black was reading her morning devotions on the porch of a neighboring bathhouse.
The Awakening and Selected Short Stories|Kate Chopin
The lady in black, creeping behind them, looked a trifle paler and more jaded than usual.
The Awakening and Selected Short Stories|Kate Chopin
A little black girl sat on the floor, and with her hands worked the treadle of the machine.
The Awakening and Selected Short Stories|Kate Chopin
Under the long lashes of low lids a pair of eyes black and insolent set off the haughty lines of her scarlet lips.
St. Martin's Summer|Rafael Sabatini

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