backflow

play
noun back·flow \-ˌflō\

Definition of backflow

  1. :  a flowing back or returning especially toward a source

Recent Examples of backflow from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'backflow.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of backflow

1878

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