backflow

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back·flow

 (băk′flō′)
n.
A flow of fluid in the opposite direction of its regular flow.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

backflow

(ˈbækˌfləʊ)
n
a reverse flow, the movement (of a liquid) in the opposite direction to its previous, natural or intended direction
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

back•flow

(ˈbækˌfloʊ)

n.
a flow of a liquid opposite to the usual or desired direction.
[1880–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.backflow - a flow that returns toward its source
backflowing
flow, flowing - the motion characteristic of fluids (liquids or gases)
regurgitation - backflow of blood through a defective heart valve
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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References in periodicals archive
Summary: Mumbai (Maharashtra) [India], Aug 03 (ANI): Heavy rains coinciding with high tide lashed rail services in Mumbai on Saturday due to backflow of water in Kurla, Sion and Chunabhati section.
Maharashtra: Suburban trains suspended amid heavy rainfall
Naperville is offering residents and businesses a chance to participate in its Sanitary Sewer Backflow Prevention Device Program, where eligible property owners are reimbursed for 75% of the cost to install a prevention device of their choice.
Naperville looking to reduce sewer backups
[ClickPress, Thu Aug 01 2019] Backflow preventers have gained a significant traction as an essential source of avoiding flow reversal from a potable water system, eliminating contamination and enabling safe water supply.
Backflow Preventer Sales Buoyed by Stakeholder Efforts to Offer Advanced Products
Five villages in this coastal Pangasinan city, including the downtown area, are flooded due to heavy rains dumped by Typhoon 'Ompong' and due to the backflow from the sea.
'Ompong' rains bring floods to Pangasinan
Such results demonstrate that backflow is always there but is a rather small effect, which may explain why it has not been measured yet.
New Breakthrough Discovery: Every Quantum Particle Travels Backwards
M2 PHARMA-February 25, 2016-Stoma Dental Launches Backflow Prevention Saliva Ejector Valve
Stoma Dental Launches Backflow Prevention Saliva Ejector Valve
The new DOVE[TM] HVE and SE valves respond to concerns shared by dental healthcare professionals and patients alike, in that the valves reduce the possibility of reverse flow, or backflow, which can occur when there is greater negative pressure in the patients mouth than in the evacuator tubing.
Stoma Dental Dove[TM]: disposable oral valve evacuation
Drain and winterize underground irrigation systems, including yard sprinklers and backflow preventers; wrap the backflow preventer with insulating material.
Cold temperatures could last several days
When bed bags used at night are switched to a more conspicuous leg bag for daytime use, the system is "broken" which can cause infection from backflow of urine and bacteria into the bladder.
Reduced UTIs
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