1

siphon

noun si·phon \ˈsī-fən\

Definition of siphon

  1. 1a :  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 flowb 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. 2 :  any of various tubular organs in animals and especially mollusks or arthropods that are used for drawing in or ejecting fluids

Illustration of siphon

Variants of siphon

less commonly

\ˈsī-fən\

Origin and Etymology of siphon

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


First Known Use: 1659


2

siphon

verb si·phon

Definition of siphon

siphoned

also

syphoned

siphoning

play also

syphoning

\ˈsī-fə-niŋ, ˈsīf-niŋ\
  1. transitive verb
  2. :  to convey, draw off, or empty by or as if by a siphon —often used with off

  3. intransitive verb
  4. :  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.

1859

First Known Use of siphon

1859

Variants of siphon

less commonly

Other Mechanical Engineering Terms


SIPHON Defined for English Language Learners

1

siphon

noun si·phon \ˈsī-fən\

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


2

siphon

verb si·phon

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. 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. 2 :  a tubelike part especially of a mollusk (as a clam) usually used to draw in or squirt out water


2

siphon

verb si·phon

Definition of siphon for Students

siphoned

siphoning

  1. :  to draw off by or as if by a siphon



Seen and Heard

What made you want to look up siphon? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a harsh rebuke

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • hot-dog--hot-dog--hot-dog--hot-dog-cat
  • Which of the following words is not a synonym for ‘a young person’?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ