black rust

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noun Plant Pathology.

any of several diseases of plants caused by rusts and characterized by black discoloration resulting from the fungal teliospores.

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Origin of black rust

An Americanism dating back to 1780–90

Words nearby black rust

black root rot, black rot, black ruff, black run, Black Russian, black rust, black sage, black sapote, Black Sash, Blacksburg, black scoter

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use black rust 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 black rust

black rust

noun

a stage in any of several diseases of cereals and grasses caused by rust fungi in which black masses of spores appear on the stems or leaves

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