frog's lettuce
- noun
- UK
- The frog's lettuce thrives in still water.
Examples
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Frog's lettuce is often found in calm streams and ponds across Europe.
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Researchers studied how frog's lettuce adapted to changes in water quality.
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The aquarium was decorated with frog's lettuce to provide a natural habitat for the fish.
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I found some frog's lettuce in the pond.
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In quiet ponds, frog's lettuce grows abundantly, providing shelter for aquatic life.
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The park's small lake has patches of frog's lettuce floating gently on the surface.
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During our nature walk, we spotted frog's lettuce along the edge of the tranquil stream.
Surface Forms
Morphology
frog's + lettuce
The compound 'frog's lettuce' is a compositional possessive noun: combining 'frog' and 'lettuce' clearly signals a kind of plant associated with frogs (i.e. a plant found near or used by frogs). This mapping from constituents to an aquatic plant is straightforward and follows common cross-linguistic naming patterns for plants, so a B1 learner who knows both words would readily infer the general meaning.
Etymology
Frog's lettuce may come from the picture of a frog sitting on lettuce-like leaves that float in ponds. So that image helps explain why the name means 'a water plant' found in calm water.