Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio.
- an annual weed (Anthemis cotula) of the composite family, having daisylike flower heads with white rays and yellow centers, and an offensive smell; mayweed
- ☆ a tall, annual weed (Eupatorium capillifolium) of the composite family, with finely divided leaves and a terminal cluster of tiny, rayless flower heads
- heath aster
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 strong-smelling European weed (Anthemis cotula) naturalized in North America.
- A weedy plant (Eupatorium capillifolium) of the southeast United States, having pinnately divided leaves and long clusters of greenish flowers.