Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of several green algae of the genus Ulva, having a membranous, leaflike, irregularly shaped thallus that can be eaten fresh or dried in salads or soups.

from The Century Dictionary.

  • noun See lettuce.

from the GNU version of the Collaborative International Dictionary of English.

  • (Bot.) The green papery fronds of several seaweeds of the genus Ulva, sometimes used as food.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Any of several edible seaweeds of the genus Ulva.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun seaweed with edible translucent crinkly green fronds

Etymologies

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