the act or process of sucking the force or condition produced by a pressure difference, as the force holding a suction cap onto a surface the act or process of producing such a force or condition
WordReference Random House Learner's Dictionary of American English © 2025
suc•tion /ˈsʌkʃən/USA pronunciation
n. [uncountable]
v. [~ (+ up ) + object]
WordReference Random House Unabridged Dictionary of American English © 2025- Hydraulicsthe force that, owing to pressure differences, attracts a fluid or solid to where the pressure is lowest.
v. [~ (+ up ) + object]
- Medicineto draw out or remove by sucking, esp. by artificial means.
suc•tion
(suk′shən),USA pronunciation n.
v.t.
suc′tion•al, adj.
- the act, process, or condition of sucking.
- Hydraulics, Physicsthe force that, by a pressure differential, attracts a substance or object to the region of lower pressure.
- Hydraulics, Physicsthe act or process of producing such a force.
v.t.
- Medicineto draw out or remove by aspiration.
- Late Latin sūctiōn- (stem of sūctiō) a sucking, equivalent. to Latin sūct(us) (past participle of sūgere to suck) + -iōn- -ion
- 1605–15
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