contrarreflujo, refluxo, consequência negativa
1. Water or other liquid flowing backward, especially the wave created by a boat's movement or water returning after hitting something
The backwash from the speedboat splashed onto the dock.
O refluxo do iate rápido respingou no cais.
2. The negative consequence or repercussion of an event or action
The scandal created a backwash of criticism against the company.
O escândalo gerou uma onda de críticas contra a empresa.
3. Liquid that flows backward into a container or pipe, often contaminating the original source
The plumber warned about backwash contaminating the drinking water.
O encanador alertou sobre o refluxo contaminando a água potável.
4. (verb) To flow backward or in reverse direction
The water began to backwash into the pool.
A água começou a refluir para dentro da piscina.
In American English, 'backwash' is widely used both in nautical contexts and as a metaphor for negative consequences or reactions to an event. In Brazilian Portuguese, while 'refluxo' is the technical term, 'onda de reação' or 'reação em cadeia' are often used metaphorically. The term gained popularity in casual speech to describe unintended consequences of actions, especially in media and business contexts.
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