In a small house the butler also valets for the master of the house. Male staff report to him. The butler is often engaged by the master of the house but usually reports to the lady of the house or sometimes to the housekeeper. In charge of the kitchen and kitchen staff.
Full Definition of WEIR. 1. : a fence or enclosure set in a waterway for taking fish. 2. : a dam in a stream or river to raise the water level or divert its flow.
The weir crest is the top of the weir. For a v notch weir it is the point of the notch, which is the lowest point of the weir opening. The term nappe is used for the sheet of water flowing over the weir. The equations to meter flow in this article require free flow, which takes place when there is air under the nappe.