knapweed
noun Etymology: Middle English knopwed, from knop knop + wed weed Date: 15th century any of various weedy centaureas; especially a widely naturalized European perennial (Centaurea nigra) with tough wiry stems and knobby heads of purple flowers

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Knapweed — Knap weed , n. (Bot.) The black centaury ({Centaurea nigra}); so called from the knoblike heads of flowers. Called also {bullweed}. [1913 Webster] …   The Collaborative International Dictionary of English

  • knapweed — [nap′wēd΄] n. [earlier knopweed: see KNOP & WEED1] any of several weedy plants (genus Centaurea) of the composite family; esp., a hardy perennial ( C. nigra) with heads of rose purple flowers …   English World dictionary

  • knapweed — sausvirbė statusas T sritis vardynas apibrėžtis Šeima. Astriniai – Asteraceae Martynov atitikmenys: lot. Amberboa angl. centaury; cornflower; knapweed vok. Flockenblume rus. василек lenk. chaber …   Dekoratyvinių augalų vardynas

  • knapweed — bajorė statusas T sritis vardynas apibrėžtis Astrinių (Asteraceae) šeimos augalų gentis (Centaurea). atitikmenys: lot. Centaurea angl. blue cap; centaury; cornflower; dusty miller; knapweed; star thistle vok. Bisamknopf; Flockenblume; Kornblume… …   Dekoratyvinių augalų vardynas

  • knapweed — /nap weed /, n. any composite plant of the genus Centaurea, esp. the weedy C. nigra, having rose purple flowers set on a dark colored, knoblike bract. Also called hardheads, Spanish button. [1400 50; late ME knopwed. See KNOP, WEED1] * * * …   Universalium

  • knapweed — noun /ˈnæpwiːd/ Any of various common weeds of the genus Centaurea, especially Centaurea nigra …   Wiktionary

  • knapweed — n. (Botany) thorny plant with purple flowers gathered in a head with spiny sections just under them …   English contemporary dictionary

  • knapweed — noun a tough stemmed plant with purple thistle like flower heads. [Centaurea nigra and related species.] Origin ME (orig. as knopweed): from knop (because of its rounded flower heads) + weed …   English new terms dictionary

  • knapweed — knap·weed …   English syllables

  • knapweed — knap•weed [[t]ˈnæpˌwid[/t]] n. pln any composite plant of the genus Centaurea, esp. the weedy C. nigra, having rose purple flowers set on a dark colored, knoblike bract • Etymology: 1400–50; late ME knopwed=knoppe a small rounded protuberance… …   From formal English to slang

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