1

siphon

noun si·phon \ ˈsī-fən \
variants: or less commonly
Updated on: 14 Nov 2017

Definition of siphon

1 a : a tube bent to form two legs of unequal length by which a liquid can be transferred to a lower level over an intermediate elevation by the pressure of the atmosphere in forcing the liquid up the shorter branch of the tube immersed in it while the excess of weight of the liquid in the longer branch when once filled causes a continuous flow
b usually syphon : a bottle for holding aerated water that is driven out through a bent tube in its neck by the pressure of the gas when a valve in the tube is opened
2 : any of various tubular organs in animals and especially mollusks or arthropods that are used for drawing in or ejecting fluids

Recent Examples of siphon from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'siphon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Illustration of siphon

Origin and Etymology of siphon

French siphon, from Latin siphon-, sipho tube, pipe, siphon, from Greek siphōn


2

siphon

verb
variants: or less commonly syphon

Definition of siphon

siphoned also syphoned; siphoning also syphoning play \ˈsī-fə-niŋ, ˈsīf-niŋ\
transitive verb
: to convey, draw off, or empty by or as if by a siphon often used with off
intransitive verb
: to pass by or as if by a siphon

Examples of siphon in a Sentence

  1. The water needs to be siphoned from the pool.

  2. She illegally siphoned money out of other people's bank accounts.

  3. Funds were siphoned from the schools to build a new stadium.

  4. The large chain stores are siphoning profits from the small local stores.

Recent Examples of siphon from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'siphon.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of siphon

1859

siphon Synonyms

Synonyms
bleed, draft, draw (off), pump, drain (also syphon), tap
Antonyms
fill
Related Words
milk; suck; clear, empty, evacuate, exhaust, vacate, vacuate, void; decant, effuse; deplete; clean, flush, purge
Near Antonyms
bathe, douse (also dowse), drench, soak, souse, wash, water, wet; deluge, drown, flood, inundate, overflow; submerge, swamp

Other Mechanical Engineering Terms


SIPHON Defined for English Language Learners

siphon

noun

Definition of siphon for English Language Learners

  • : a bent tube used to move a liquid from one container into another container by means of air pressure


siphon

verb

Definition of siphon for English Language Learners

  • : to move (a liquid) from one container to another by using a siphon

  • : to take and use (something, such as money) for your own purpose


SIPHON Defined for Kids

1

siphon

noun si·phon \ ˈsī-fən \

Definition of siphon for Students

1 : a bent pipe or tube through which a liquid can be drawn by air pressure up and over the edge of a container
2 : a tubelike part especially of a mollusk (as a clam) usually used to draw in or squirt out water

2

siphon

verb

Definition of siphon for Students

siphoned; siphoning
: to draw off by or as if by a siphon


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