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[hahy-druh-fahyt] /ˈhaɪ drəˌfaɪt/
a plant that grows in water or very moist ground; an aquatic plant.
Origin of hydrophyte
First recorded in 1825-35; hydro-1 + -phyte
Related forms
[hahy-druh-fit-ik] /ˌhaɪ drəˈfɪt ɪk/ (Show IPA),
hydrophytism, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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British Dictionary definitions for hydrophyte


a plant that grows only in water or very moist soil
Derived Forms
hydrophytic (ˌhaɪdrəʊˈfɪtɪk) adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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hydrophyte in Science
A plant that grows wholly or partly submerged in water. Because they have less need to conserve water, hydrophytes often have a reduced cuticle and fewer stomata than other plants. Floating leaves have stomata only on their upper surfaces, and underwater leaves generally have no stomata at all. Because water is readily available, hydrophytes also have a reduced root system and less vascular tissue than other plants (which also makes plant parts less dense and helps them float). Hydrophytes tend to have less supportive tissue as well, since they are buoyed by water. Many species of hydrophytes (such as the Eurasian milfoil) have divided leaves that have less resistance to flowing water. The lotus, water lily, and cattail are hydrophytes. Compare mesophyte, xerophyte.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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