Dictionary
stone•wort
Pronunciation: (stōn'wûrt", -wôrt"), [key]—
n.
any of a plantlike group of green algae constituting the class Charophyceae, having a jointed body frequently encrusted with lime and usually attached to the bottom in fresh water.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.