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.
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.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
The American Heritage Dictionary Blog
Check out our blog, updated regularly, for new words and revised definitions, interesting images from the 5th edition, discussions of usage, and more.