stonewort

[stohn-wurt, -wawrt]

noun

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.

Origin of stonewort

First recorded in 1575–85; stone + wort²

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for stonewort

stonewort

noun

any of various green algae of the genus Chara, which grow in brackish or fresh water and have jointed fronds encrusted with lime

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