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Valve Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways. Shown is a brass water valve. Back to 5000 Word List 314 |
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Valve Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways. Shown is a brass water valve. Back to 5000 Word List 314 |