Found 2 items, similar to Ulva.
English → English (WordNet) Definition: Ulva Ulva n : type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce [syn: genus Ulva]
English → English (gcide) Definition: Ulva Ulva \Ul"va\, n. [L., sedge.] (Bot.) A genus of thin papery bright green seaweeds including the kinds called sea lettuce. [1913 Webster]