ulva

2 definitions found

ulva - Collaborative International Dictionary of English v.0.48 :

  Ulva \Ul"va\, prop. n. [L., sedge.] (Bot.)
     A genus of thin papery bright green seaweeds including the
     kinds called sea lettuce.
     [1913 Webster]

ulva - WordNet (r) 2.1 (2005) :

  Ulva
      n 1: type genus of the family Ulvaceae; green seaweed having a
           thallus two cells thick: sea lettuce [syn: Ulva, genus Ulva
           ]