suction definition by Webster's New World
- the act or process of sucking
- the production of a vacuum or partial vacuum in a cavity or over a surface so that the external atmospheric pressure forces the surrounding fluid, particulate solid, etc. into the cavity or causes something to adhere to the surface
- the suction force created in this way
Origin: Classical Latin suctio ; from suctus, past participle of sugere, to suck
- causing suction
- operating by suction
suction definition by American Heritage Dictionary
- The act or process of sucking.
- A force that causes a fluid or solid to be drawn into an interior space or to adhere to a surface because of the difference between the external and internal pressures.
- To draw away or remove by the force of suction: suction fluid from the lungs.
- To clean or evacuate (a body cavity, for example) by the force of suction.
- Creating suction.
- Operating or operated by suction.
Origin: Late Latin sūctiō, sūctiōn-, from Latin sūctus, past participle of sūgere, to suck; see seuə-2 in Indo-European roots.
suction - Science Definition
- A force acting on a fluid caused by difference in pressure between two regions, tending to make the fluid flow from the region of higher pressure to the region of lower pressure.
- The act of reducing pressure to create such a force, as by the use of a pump or fan.