noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A bryophyte, of phylum Anthocerotophyta, with a leafless thallus characterized by a dominant gametophyte stage of the life cycle and a sporophyte stage shaped like a horn.
2. 2
   liverworts with slender hornlike capsules wordnet
3. 3
   An aquatic flowering plant in the genus Ceratophyllum
4. 4
   any aquatic plant of the genus Ceratophyllum; forms submerged masses in ponds and slow-flowing streams wordnet
5. 5
   Vernal grasses (Anthoxanthum spp.).

Synonyms

All synonyms

coontailmorass-weed

Etymology

From horn + wort (“plant”), from the fact that the spores are produced in slender horn-shaped structures.

Related phrases

prickly hornwort

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.