An edible seaweed with green fronds that resemble lettuce leaves.
海莴苣，石莼
Ulva lactuca, division Chlorophyta
Example sentencesExamples
Species of sea lettuce form light yellowish green to dark green sheets and are common to our area and most shorelines around the world.
‘Removing the sea lettuce will reduce the amount of nutrients in the ecosystem, which would be returned to the water if algae were allowed to decompose in place.’
For other species you should look closely at the kelp and purple sea lettuces, where you will often find various exotic-looking examples in the process of mating.
Definition of sea lettuce in US English:
sea lettuce
noun
An edible seaweed with green fronds that resemble lettuce leaves.
海莴苣，石莼
Ulva lactuca, division Chlorophyta
Example sentencesExamples
‘Removing the sea lettuce will reduce the amount of nutrients in the ecosystem, which would be returned to the water if algae were allowed to decompose in place.’
Species of sea lettuce form light yellowish green to dark green sheets and are common to our area and most shorelines around the world.
For other species you should look closely at the kelp and purple sea lettuces, where you will often find various exotic-looking examples in the process of mating.