n. 1. The act or process of sucking. 2. 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. tr.v. suc·tioned, suc·tion·ing, suc·tions 1. To draw away or remove by the force of suction: suction fluid from the lungs. 2. To clean or evacuate (a body cavity, for example) by the force of suction. adj. 1. Creating suction. 2. Operating or operated by suction. [Late Latin sūctiō, sūctiōn-, from Latin sūctus, past participle of sūgere, to suck; see seuə-2 in the Appendix of Indo-European roots.] |
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