Backflow

noun, verb

Definitions

Noun
  1. 1
    The flow of a fluid (through a pipe etc.) in a direction opposite to that which is normal or intended. countable, uncountable
  2. 2
    a flow that returns toward its source wordnet
Verb
  1. 1
    To flow in the wrong or backward direction. intransitive, transitive

Etymology

Etymology 1

From back + flow.

Etymology 2

From back + flow.

Next best steps

Mini challenge

Unscramble this word: backflow