Definition of crystalwort in English:

crystalwort

noun

  • Any of numerous liverworts of the family Ricciaceae, which comprises thallose liverworts found worldwide in moist soils and aquatic habitats; (in later use) specifically Riccia fluitans, commonly used as an aquarium plant.

Origin

Mid 19th century; earliest use found in John Lindley (1799–1865), botanist and horticulturist. From crystal + wort, perhaps so called on account of its branching thallose structure.

Pronunciation

crystalwort

/ˈkrɪstlwəːt/