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roller gate
noun
(on certain dams) a cylindrical gate that rises and falls by rotating against inclined racks.
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
But today, the roller gate remains down and locked.
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Army Corps of Engineers employee quickly closed the roller gate when he saw the boat approaching and prevented it from going over the dam.
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Authorities believe the boat went through a roller gate.
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