from The Century Dictionary and Cyclopedia
- n. A genus of algæ, typical of the order Ulvaceæ, having a flat membranaceous bright-green frond. U. latissima and U. Lactuca are sometimes eaten. See green laver (under laver), sea-lettuce (under lettuce), and Enteromorpha.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce
Sorry, no etymologies found.