: a flowing back or returning especially toward a source
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That first round will help pay for the installation and maintenance of backflow prevention valves, which are designed to keep floodwaters out of homes.—Adam Harrington, CBS News, 15 June 2026 The cause of the chlorine gas exposure was likely due to the backflow process, which is used to clear out pool filters throughout the day, the news release states.—Greta Cross, USA Today, 3 June 2026 That includes where decisions are made, who depends on whose output, where information crosses boundaries and where the backflow points are.—Barbara Wittmann, Forbes.com, 22 May 2026 Crostplay2 said the project went through around ten motor driver boards during testing due to power backflow while uploading new firmware to the ESP32.—Kaif Shaikh, Interesting Engineering, 22 May 2026 See All Example Sentences for backflow