• (n.) A plant or weed that grows in rivers; a species of Equisetum; also, the yellow frog lily (Nuphar luteum).
Can'dock noun [ Prob. from can + dock (the plant). Confer German kannenkraut horsetail, lit. 'canweed.'] (Botany) A plant or weed that grows in rivers; a species of Equisetum ; also, the yellow frog lily ( Nuphar luteum ).