Search Result for "ulva": 
Wordnet 3.0

NOUN (1)

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


The 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]
WordNet (r) 3.0 (2006):

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