Hornwort

2 definitions found

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

  Hornwort \Horn"wort`\, n. (Bot.)
     An aquatic plant ({Ceratophyllum}), with finely divided
     leaves.
     [1913 Webster]

From WordNet (r) 2.0 [wn]:



  hornwort
       n 1: any aquatic plant of the genus Ceratophyllum; forms
            submerged masses in ponds and slow-flowing streams
       2: liverworts with slender hornlike 2-valved capsules