the force that, by a pressure differential, attracts a substance or object to the region of lower pressure.
3.
the act or process of producing such a force.
verb (used with object)
4.
to draw out or remove by aspiration.
Origin
1605-15; < Late Latinsūctiōn- (stem of sūctiō) a sucking, equivalent to Latinsūct(us) (past participle of sūgere to suck) + -iōn--ion
Related forms
suctional, adjective
nonsuction, noun
Examples from the web for suction
Many of them could resist the suction of even our industrial-strength vacuum cleaner.
Each is fitted with a roof for shade, a large motor on deck and a huge suction pipe running from the stern into the water.
Thanks guys, you have made the comments suction as interesting as the article itself.
One of the squirrels on my garden did good enough acrobatics to get to the feeder suction-cupped on the window.
But if you want to suck up, don't apply suction to lower-middle management, which is who drinks white wine.
If there is a worm in the fluid it is drawn towards the hole and held in place by the suction.
BP is keeping mum, but it does say that the plume of leaking oil looks significantly different now that suction is being applied.
The torrent loach uses suction cups to hold its position.
suction might have helped it contend with agile prey such as sharks, they observe.
If the vacuum or suction thus created is great enough, water will rise up through the straw.
British Dictionary definitions for suction
suction
/ˈsʌkʃən/
noun
1.
the act or process of sucking
2.
the force or condition produced by a pressure difference, as the force holding a suction cap onto a surface
3.
the act or process of producing such a force or condition
Derived Forms
suctional, adjective
Word Origin
C17: from Late Latin suctiō a sucking, from Latin sūgere to suck
Word Origin and History for suction
n.
1620s, from Late Latin suctionem (nominative suctio), noun of action from past participle stem of Latin sugere "to suck" (see suck).
suction in Science
suction
(sŭk'shən)
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.