| siphon or syphon (ˈsaɪfən) | |
| —n | |
| 1. | a tube placed with one end at a certain level in a vessel of liquid and the other end outside the vessel below this level, so that atmospheric pressure forces the liquid through the tube and out of the vessel |
| 2. | See soda siphon |
| 3. | zoology any of various tubular organs in different aquatic animals, such as molluscs and elasmobranch fishes, through which a fluid, esp water, passes |
| —vb | |
| 4. | ( |
| [C17: from Latin sīphō, from Greek siphōn siphon] | |
| syphon or syphon | |
| —n | |
| —vb | |
| [C17: from Latin sīphō, from Greek siphōn siphon] | |
| 'siphonage or syphon | |
| —n | |
| 'siphonal or syphon | |
| —adj | |
| siphonic or syphon | |
| —adj | |
| syphon (ˈsaɪfən) | |
| —n | |
| a variant spelling of siphon | |
syphon
instrument, usually in the form of a tube bent to form two legs of unequal length, for conveying liquid over the edge of a vessel and delivering it at a lower level. Siphons may be of any size; they are used in civil engineering to transfer water or other fluids over elevations. The action depends upon the influence of gravity (not, as sometimes thought, on the difference in atmospheric pressure-a siphon will work in a vacuum) and upon the cohesive forces that prevent the columns of liquid in the legs of the siphon from breaking under their own weight. Water has been lifted more than 35 feet (11 m) by a siphon
Learn more about syphon with a free trial on Britannica.com.