sea lettuce

American  

noun

1. any seaweed of the genus Ulva, having large leaflike blades.

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sea lettuce British  

noun

1. any of various green seaweeds of the genus Ulva, which have edible wavy translucent fronds

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Etymology

Origin of sea lettuce

First recorded in 1660–70

Example Sentences

The bar, made with sea lettuce from Monterey Bay Seaweeds and salt from Big Sur Salt, is vegan.

From New York Times

A study from False Bay, in Cape Town, South Africa found the anti-inflammatory drug diclofenac in sea lettuce, an edible seaweed.

From Salon

Put the flour, sea lettuce, sea salt, lemon juice and olive oil in a bowl, then stir in the yeast mixture until it all comes together.

From The Guardian

There is the crinkly, electric-green sea lettuce⁠, the ruffled grape tongue, and hundreds of others, many of which were first identified for science by amateur seaweeders.

From The Guardian

There have even been claims that Covid-19 can be prevented or cured with vitamin C, garlic, sesame oil, or sea lettuce.

From Salon