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Dictionary Meaning and Definition on 'Suction'

Suction Meaning and Definition from WordNet (r) 2.0
    suction n
  1. a force over an area produced by a pressure difference
  2. the act of sucking [syn: sucking, suck] v
  3. remove or draw away by the force of suction; "the doctors had to suction the water from the patient's lungs"
  4. empty or clean (a body cavity) by the force of suction; "suction the uterus in an abortion"
Suction Meaning and Definition from Webster's Revised Unabridged Dictionary (1913)
    Suction \Suc"tion\, n. [L. sugere, suctum, to suck; cf. OF. suction. See Suck, v. t.] The act or process of sucking; the act of drawing, as fluids, by exhausting the air. Suction chamber, the chamber of a pump into which the suction pipe delivers. Suction pipe, Suction valve, the induction pipe, and induction valve, of a pump, respectively. Suction pump, the common pump, in which the water is raised into the barrel by atmospheric pressure. See Illust. of Pump.
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Wikipedia Meaning and Definition on 'Suction'

Suction is the flow of a fluid into a partial vacuum, or region of low pressure. The pressure gradient between this region and the ambient pressure will propel matter toward the low pressure area. Suction is popularly thought of as an attractive effect, which is incorrect since vacuums do not innately attract matter. Dust being "sucked" into a vacuum cleaner is actually being pushed in by the higher pressure air on the outside of the cleaner.

The higher pressure of the surrounding fluid can push matter into a vacuum but a vacuum cannot attract matter.

Pumps typically have an inlet where the fluid enters the pump and an outlet where the fluid comes out. The inlet location is said to be at the suction side of the pump. The outlet location is said to be at the discharge side of the pump. Operation of the pump creates suction (a lower pressure) at the suction side so that fluid can enter the pump through the inlet. Pump operation also causes higher pressure at the discharge side by forcing the fluid out at the outlet. There may be pressure sensing devices at the pump's suction and/or discharge sides which control the operation of the pump. For example, if the suction pressure of a centrifugal pump is too low, a device may trigger the pump to shut off to keep it from running dry; i. e. with no fluid entering.

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Suction Sample Sentences in News

  • SD Mines Researcher Designing Foundation for World’s Largest Offshore Windmill
    SD School of Mines professor Sangchul Bang is making history by designing suction pile foundations for what will be the world's largest windmill on a 2,500-megawatt (MW) wind farm in the Yellow Sea off the shores of South Korea. (PRWeb August 29, 2014) Read the full story at Read more on this news related to 'Suction'
  • Dyson to make robot vacuum cleaners
    Sir James Dyson unveils his company's first robot vacuum cleaner at a press conference in Japan, promising more suction power than rivals. Read more on this news related to 'Suction'
  • Household rows to end as Dyson invents robot vacuum cleaner
    New 360 cleaner, which can go up steps, claims to have the most powerful suction on the market Read more on this news related to 'Suction'

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