pillwort

2 definitions found

pillwort - Collaborative International Dictionary of English v.0.48 :

  Pillwort \Pill"wort`\, n. (Bot.)
     Any plant of the genus Pilularia; minute aquatic
     cryptograms, with small pill-shaped fruit; -- sometimes
     called peppergrass.
     [1913 Webster]

pillwort - WordNet (r) 2.1 (2005) :

  pillwort
      n 1: European water fern found around margins of bodies of water
           or in wet acid soil having small globose sporocarps [syn:
           pillwort, Pilularia globulifera]