the act, process, or condition of sucking.
the force that, by a pressure differential, attracts a substance or object to the region of lower pressure.
the act or process of producing such a force.
to draw out or remove by aspiration.
- suc·tion·al, adjective
- non·suc·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use suction in a sentence
Now, scientists have discovered that its skull was adapted to allow Tiktaalik to use both suction and biting while feeding.This ancient fish-crocodile mashup snared its prey using a key adaptation | Kate Baggaley | February 3, 2021 | Popular-Science
There are few bells and whistles—it’s pretty much an upright without any tools or attachments, and you have to empty the bin and clean the filter regularly to maintain the suction power.Best cordless vacuum: Suck up debris without getting yourself tangled | Charlotte Marcus | January 19, 2021 | Popular-Science
With an under $150 vacuum, you should expect a significantly shorter battery life, smaller bins, and less suction power.Best robot vacuum: Clean up without lifting a finger | Carsen Joenk | December 18, 2020 | Popular-Science
This one’s the better pickup over the similarly priced V7 since it comes with two extra attachments, a boost in suction power, and 10 extra minutes of run time.
There are a variety of colors to choose from and, best of all, once you pick your colors you can find matching divided suction plates and changing mats.Silicone bibs to keep food off your baby and time on your side | PopSci Commerce Team | October 6, 2020 | Popular-Science
The Department issued orders banning both mohelim from practicing direct oral suction.Why Ultra-Orthodox Jewish Babies Keep Getting Herpes | Emily Shire | July 29, 2014 | THE DAILY BEAST
The tube was to be inserted so it could suction out the blood and air packed in the chest and prevent the lung from collapsing.Jimmy Breslin on JFK’s Assassination: Two Classic Columns | Jimmy Breslin | November 22, 2013 | THE DAILY BEAST
As the clock struck twelve he gave the signal at which the large suction-pump was to be set in motion.Black Diamonds | Mr Jkai
And always the usual work of the suction-pumps went on, those pumps now fixed to this great reservoir of millions.The Nabob | Alphonse Daudet
The first and second lead precipitates were filtered by suction and washed with water.Some Constituents of the Poison Ivy Plant: (Rhus Toxicodendron) | William Anderson Syme
In the storerooms above the electric engine room there was one 3-inch suction.Loss of the Steamship 'Titanic' | British Government
Each pump had suction and discharge pipes of 29-inch bore, and was driven by a compound engine.Loss of the Steamship 'Titanic' | British Government
British Dictionary definitions for suction
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
- suctional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for suction
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.