the world > plants > particular plants > plants and herbs > aquatic, marsh, and sea-shore plants > [noun] > waterwort (3)
Any small aquatic flowering plant of the genus Elatine (family Elatinaceae), typically found in or at the edge of shallow water, and sometimes grown…
Any of several small aquatic plants of the family Elatinaceae, esp. waterworts of the genus Elatine. Now rare.
a North American waterwort, Elatine americana.