rose rust


Definition of rose rust

  1. 1 :  any of several rusts that attack roses: such as a :  a rust of the genus Phragmidium b :  a rust of the genus Earlea

  2. 2 :  disease caused by a rose rust

Love words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Seen and Heard

What made you want to look up rose rust? Please tell us where you read or heard it (including the quote, if possible).


to criticize severely

Get Word of the Day daily email!