Flow of a fluid into a partial vacuum, or region of low pressure
Also known as sucking
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6 identifiers linking suction across the web's reference databases
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Suction is the day-to-day term for the movement of gases or liquids along a pressure gradient with the implication that the movement occurs because the lower pressure pulls the gas or liquid. However, the forces acting in this case do not originate from just the lower pressure side, but instead from the side of the higher pressure, as a reaction to the pressure difference.