Past tense of embank; enclosed, protected, or confined by an embankment or artificial bank.
From embank + -ed (past tense and participle suffix), creating the adjective form describing something that has been embanked.
The Thames River in London is heavily embanked with concrete and stone structures that were built gradually over centuries—recent projects have added 'living embankments' with plants to help fish and wildlife while still controlling floods.
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