Dictionary.com

knapweed

[ nap-weed ]
/ ˈnæpˌwid /
Save This Word!

noun

any composite plant of the genus Centaurea, especially the weedy C. nigra, having rose-purple flowers set on a dark-colored, knoblike bract.

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Also called hardheads, Spanish button.

Origin of knapweed

First recorded in 1400–50, knapweed is from the late Middle English word knopwed.See knop, weed1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for knapweed

knapweed
/ (ˈnæpˌwiːd) /

noun

any of several plants of the genus Centaurea, having purplish thistle-like flowers: family Asteraceae (composites)See also centaury (def. 2), hardheads
C15 knopwed; see knop, weed 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Essays. Emails. Everything. Get Help Now!