n. A plant that lives in or requires an abundance of water, usually excluding seaweed.
the GNU version of the Collaborative International Dictionary of English
n. An aquatic plant; an alga.
The Century Dictionary and Cyclopedia
n. A plant which grows in water; an aquatic plant.
n. In phytogeography, a plant adapted to live under conditions of abundant moisture, or, in late usage, abundant physiological moisture. Compare mesophyte and xerophyte.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a plant that grows partly or wholly in water whether rooted in the mud, as a lotus, or floating without anchorage, as the water hyacinth
Word Usage
"In other critter news, hydrophyte inspired me to re-do the 29 gallon aquarium in the Design Student’s room."