'Water hyacinth' definitions:
Definition of 'water hyacinth'
(from WordNet)
noun
A tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States [syn: water hyacinth, water orchid, Eichhornia crassipes, Eichhornia spesiosa]
Definition of 'Water hyacinth'
From: GCIDE
- Water hyacinth \Wa"ter hy"a*cinth\ (Bot.) Either of several tropical aquatic plants of the genus Eichhornia, related to the pickerel weed. [1913 Webster]