What is a work consisting of two or more bastioned fronts, with their outworks, covering an enceinte, a bridgehead, etc., and connected by wings with the main work or the river bank called?

crownwork — A work consisting of two or more bastioned fronts, with their outworks, covering an enceinte, a bridgehead, etc., and connected by wings with the main work or the river bank. (Webster's 1913.)

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