Found 2 items, similar to conferva.
English → English (WordNet) Definition: conferva conferva n : any of various algae of the genus Tribonema; algae with branching filaments that form scum in still or stagnant fresh water [also: confervae (pl)]
English → English (gcide) Definition: Conferva Conferva \Con*fer"va\, n.; pl. Conferv[ae]. [L., a kind of water plant. See Comfrey.] (Bot.) Any unbranched, slender, green plant of the fresh-water algae. The word is frequently used in a wider sense. [1913 Webster]