Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

stem rust

noun

Definition of stem rust

  1. 1 :  a rust attacking the stem of a plant; especially :  a destructive disease especially of wheat caused by a rust fungus (Puccinia graminis) which produces reddish-brown lesions in the uredospore stage and black lesions in the teliospore stage and has any of several plants of the barberry family as an intermediate host

  2. 2 :  the fungus causing stem rust



1899

First Known Use of stem rust

1899


Seen and Heard

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

WORD OF THE DAY

the range of perception or understanding

Get Word of the Day daily email!