D defs.my
Entry 1 sense Webster, 1913

Ulva

/o͞ol'-və/ · Ul·va · IPA /ˈɔl.və/
01 prop. n. A genus of thin papery bright green seaweeds including the kinds called sea lettuce.
  1. 1.
    A genus of thin papery bright green seaweeds including the kinds called sea lettuce.(Bot.)