sea lettuce

noun

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

sea lettuce

noun

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

Word History and Origins

Origin of sea lettuce¹

First recorded in 1660–70

Example Sentences

Some of the more popular kinds include sea lettuce, Irish moss, bladderwrack, dulse, and feather boa kelp.

From Popular-Science

Ulva, or sea-lettuce, is to be found in abundance in all our small bays and inlets at low tide.

From Project Gutenberg

The so-called “sea lettuce” is of a bright grass green color, forming a large leaf like expansion.

From Project Gutenberg

We worked our way at times into small bays where green sea-lettuce lay in the shallow water in masses.

From Project Gutenberg

Among the marine forms related to these may be mentioned the sea lettuce (Ulva), shown in Figure 15.

From Project Gutenberg

There is sea-lettuce in the water, so there must be enough air.

From Project Gutenberg