red rust


: the uredinial stage of a rust
: the diseased condition produced by red rust

Example Sentences

Recent Examples on the Web From Californian poppy orange and Granny Smith green to flame red rust, even the more muted colors — think buttermilk yellow and gentle olive — make an impact. Georgia Murray,, 5 Feb. 2021 Iron oxides, the same compounds that create brown and red rust, are turning icebergs emerald. David Grossman, Popular Mechanics, 7 Mar. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'red rust.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1806, in the meaning defined at sense 1

Time Traveler
The first known use of red rust was in 1806

Dictionary Entries Near red rust

Cite this Entry

“Red rust.” Dictionary, Merriam-Webster, Accessed 28 Nov. 2022.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words Named After People

  • name tags
  • Namesake of the leotard, Jules Léotard had what profession?
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.