water hyacinth
noun
a floating aquatic plant, Eichornia crassipes, of tropical lakes and rivers, that grows so prolifically it often hinders the passage of boats.
Origin of water hyacinth
An Americanism dating back to 1895–1900
Words nearby water hyacinth
water heater,
water hemlock,
water hen,
water hog,
water hole,
water hyacinth,
water ice,
water intoxication,
water jacket,
water jump,
water key
British Dictionary definitions for water hyacinth
water hyacinth
noun
a floating aquatic plant, Eichhornia crassipes, of tropical America, having showy bluish-purple flowers and swollen leafstalks: family Pontederiaceae. It forms dense masses in rivers, ponds, etc, and is a serious problem in the southern US, Australia, and parts of Africa