Â­TÂ­here are many different ways to create a motion sensor. For example: 1  It is common for stores to have a beam of light crossing the room near the door, and a photosensor on the other side of the Â­room. 2  When a customer breaks the beam, the photosensor detects the change in the amount of light and rings a bell.
Definition of weir. 1  1 : a fence or enclosure set in a waterway for taking fish. 2  2 : a dam in a stream or river to raise the water level or divert its flow.
This page provides all possible meanings and translations of the word Effluent. effluent, wastewater, sewer water(adj) water mixed with waste matter. effluent, outflowing(adj) that is flowing outward. effluent(Noun) A stream that flows out, such as from a lake or reservoir; an outflow; effluence.