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2017 Word of the Year

backflow

[bak-floh] /ˈbækˌfloʊ/
noun
1.
a flow of a liquid opposite to the usual or desired direction.
Origin of backflow
1880-1885
First recorded in 1880-85; back2 + flow
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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