the academicians of argamasilla, a village of la mancha, on the life and death of don quixote of la mancha, hoc scripserunt monicongo, academician of argamasilla, paniaguado, academician of argamasilla, in laudem dulcineae del toboso
Noun. 1. siphon-a tube running from the liquid in a vessel to a lower level outside the vessel so that atmospheric pressure forces the liquid through the tube. syphon.tube, tubing-conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases.. A pipe or tube in the form of an upside-down U, filled with liquid and arranged so that the pressure of the atmosphere forces liquid to flow upward from a container through the tube, over a barrier, and into a lower container. 2. A tubular animal part, as of a clam, through which water is taken in or expelled.
The siphon in a toilet is shaped like an upside-down U, connecting the toilet bowl to the pipes leading down to the sewer. In the toilet's resting state, most of the water does not rise from the bottom of the bowl through the siphon. However, when water is rapidly added to the toilet via either the flushing mechanism or someone pouring water into the bowl, the siphon tube fills up completely; this in turn creates a pressure differential.