Other forms: estuaries
An estuary is the wide mouth where a river meets the sea. The Thames estuary, mudflats in the estuary, an estuary bird.
The water is brackish, neither fresh nor salt, and the mudflats it leaves are among the richest feeding grounds birds have. Estuary English is a named accent, spreading out from London along the Thames.
1nounestuaryThe wide mouth where a river meets the sea.
“Wading birds feed on the mudflats of the estuary when the tide goes out.”
estuary is a waterway.
Latin aestuarium comes from aestus, the tide or surge.
Latin
aestuarium — creek”, “estuary of a river
English, today
estuary
From Latin aestuarium (“creek”, “estuary of a river”).
Etymology from Wiktionary, CC BY-SA