siphon

definition: a tubular organ in an aquatic animal (especially in mollusks) through which water can be taken in or expelled
example:
speech part: noun
synonyms: syphon
definition: 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
example:
speech part: noun
synonyms: syphon
definition: move a liquid from one container into another by means of a siphon or a siphoning action
example: siphon gas into the tank
speech part: verb
synonyms:
definition: convey, draw off, or empty by or as if by a siphon
example:
speech part: verb
synonyms: syphon siphon off

How siphon is being used?