waterweed

3 definitions found

waterweed - Collaborative International Dictionary of English v.0.48 :

  Waterweed \Wa"ter*weed`\, n. (Bot.)
     See Anacharis.
     [1913 Webster]

  Anacharis \An*ach"a*ris\, n. [NL., fr. Gr. 'ana` up + xa`ris
     grace.] (Bot.)
     A fresh-water weed of the frog's-bit family
     (Hydrocharidaceae), native to America. Transferred to
     England it became an obstruction to navigation. Called also
     waterweed and water thyme.
     [1913 Webster] Anachoret

waterweed - WordNet (r) 2.1 (2005) :

  waterweed
      n 1: a weedy aquatic plant of genus Elodea