Erf

¹ British  

/ ɜːf /

acronym

1. electrorheological fluid: a man-made liquid that thickens or solidifies when an electric current passes through it and returns to a liquid when the current ceases

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erf ² British  

/ ɜːf /

noun

1. a plot of land, usually urban, marked off for building purposes

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Etymology

Origin of erf

Afrikaans

Example Sentences

If the comments are smug/nosy/rude, then, “Thank you!” is a very polite and pointed, “Erf you.”

From Washington Post

Microplastics had an ERF of about –0.75 milliwatt per square meter, whereas all other aerosols have an ERF between –0.71 and –0.14 watt per square meter.

From Scientific American

If these aren't effective or practical, then you might have to find the most compassionate and respectful way to ask him to grow the erf up.

From Washington Post

But truly, you don’t want me yelling at the scouts to sit down and shut the erf up.

From Washington Post

The ERF - comprised of health services, blue light responders and councils - said issues include "critical care and bed capacity, staff sickness/self-isolation levels and the system's ability to discharge patients quickly into safe environments".

From BBC