late 14c., from Latin sipho (genitive siphonis) "a siphon," from Greek siphon "pipe, tube for drawing wine from a cask," of unknown origin. Related: Siphonal.

1859, from siphon (n.). Figurative sense of "to draw off, divert" is recorded from 1940. Related: Siphoned; siphoning.

pipe or tube with two legs of unequal length, usually ∩-shaped, used to transport water or other fluids over elevations.

Opening in molluscs or in urochordates which draws water into the body cavity. In many molluscs, the siphon may be used to expel water forcibly, providing a means of propulsion.

definition - it is a process where water can flow through a tube or a pipe uphill and then downhill. Siphons only work in water tight tubes and as the water is released on the lower side it create a vacuum in pipe which continues pulling water through the pipe. Sometimes pond owner will leave a water hose in the bottom of the pond to fill the pond [..]

A tube running from the liquid in a container to a lower level outside the container so that atmospheric pressure forces the liquid through the tube.

(n) 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(n) a tubular organ in an aquatic animal (especially i [..]

Usually refers to a tube/hose commonly used during water changes. Uses gravity and pressure to transfer water from your aquarium into another container at a lower level.

In molluscs, a tube-like extension of the mantle edge to conduct water current for respiration and/or feeding and for some bivalves, locomotion. Ascidians, including cunjevoi, also have two siphons fo [..]

A pipe or conduit through which water will flow above the hydraulic grade line (HGL) under certain conditions. Water (or other liquid) is first forced to flow or is sucked or drawn through the pipe by [..]

a bent pipe or tube through which liquid can be drawn by air pressure up and over the edge of a container; to draw off by a siphon.