Definition
A low-lying coastal wetland that is periodically flooded by tidal seawater, characterized by salt-tolerant grasses and plants. These ecosystems are crucial nurseries for fish and shellfish, and provide critical buffers against storm surge and coastal erosion.
Example Usage
The saltmarsh behind the dike was teeming with herons and fiddler crabs at low tide.
Origin
English compound: salt + marsh, used since at least the 16th century to describe tidal wetlands
Fun Fact
Saltmarshes can trap and store carbon more effectively than forests, making them valuable in climate change mitigation efforts.
Source: Definition backfill (hailey)
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