from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A plant adapted to grow in water.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A plant that lives in or requires an abundance of water, usually excluding seaweed.
from the GNU version of the Collaborative International Dictionary of English
- n. An aquatic plant; an alga.
from 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.
from 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
hydro- + -phyte (Wiktionary)