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A valve that discharges a fixed quantity of water when a handle is operated; used to flush toilets and urinals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
flushometer, flushometer valve
A valve designed to supply a fixed quantity of water for flushing purposes; is actuated by direct water pressure, without the use of a cistern or flush tank.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.