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backflow

American  
[bak-floh] / ˈbækˌfloʊ /

noun

  1. a flow of a liquid opposite to the usual or desired direction.


Etymology

Origin of backflow

First recorded in 1880–85; back 2 + flow

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A diligent plumber will also calculate the pressure loss from the height of the bathroom above the water meter, the pressure loss through the water meter, a backflow preventer and any other pressure regulators.

From Seattle Times

They might also trigger backflow valve inspection requirements, such as those required for irrigation systems in many areas.

From Seattle Times

Götherström agrees that repeated backflow is the most likely scenario given the available evidence.

From Science Magazine

She has bricks to stand heavy furniture on if there is a flood warning, as well as freestanding pumps and sandbag substitutes ready, and even a toilet bung to prevent backflow.

From BBC

Arlington's drinking water supply was not affected, and that the splash pad is equipped with a backflow prevention device designed to isolate its water from the city's water distribution system.

From Fox News