Pillwort

2 definitions found

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

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



From WordNet (r) 2.0 [wn]:

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