Found 2 items, similar to hornwort.
English → English (WordNet) Definition: hornwort 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
English → English (gcide) Definition: Hornwort Hornwort \Horn"wort`\, n. (Bot.) An aquatic plant (Ceratophyllum), with finely divided leaves. [1913 Webster]