Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
a disease of wheat, caused by various rust fungi; esp., any of numerous stem rusts caused by a fungus (Puccinia graminis) harbored by certain barberries
Used by arrangement with John Wiley & Sons, Inc.
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- A destructive disease of wheat caused by a rust fungus.
- Any of several rust fungi of the genus Puccinia that cause this disease.