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

horseweed

play
noun horse·weed \ˈhȯrs-ˌwēd\

Definition of horseweed

  1. 1 :  a common annual American composite herb (Conyza canadensis syn. Erigeron canadensis) with an erect usually hairy stem and small discoid heads of yellow disk flowers

  2. 2 :  a coarse annual North American ragweed (Ambrosia trifida)




Seen and Heard

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

WORD OF THE DAY

to work hard

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image567572573

Which of these is a synonym of unctuous?

oily prompt angry maudlin
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ