WordReference Random House Unabridged Dictionary of American English © 2025
stone•wort
(stōn′wûrt′, -wôrt′),USA pronunciation n.
- Plant Biologyany 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.
- stone + wort2 1575–85