Hydropiper

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hydropiper \Hy"dro*pi`per\, n. [NL., fr. Gr. "y`dwr water + L.
     piper a pepper.] (Bot.)
     A species ({Polygonum Hydropiper}) of knotweed with acrid
     foliage; water pepper; smartweed.
     [1913 Webster]